baber/WOPTO huggingface dataset:
Patent GB-327274-A (GB)
Title: Machine gun mountings
IPC: F41A27/08
Filed: 1929-03-18
Abstract: 327,274. Schuler, H., Linder, F., and Rheinische Metallwaaren-und Maschinenfabrik. March 18, 1929. Tripod and like mounts for machine guns.- A machine, gun, adapted for firing at ground, and air targets, is provided with an upper carriage situated between the gun and the under carriage, and is elevated by gearing for low elevations and by hand for high elevation angles. The gun a, Fig. 1, is supported on a carrier b, which can be swung about a trunnion pin c provided at the rear end of the upper carriage d. The upper carriage is pivotally mounted on the under carriage g. When firing at ground targets, the carrier b is fixed to the upper carriage d by a pin e, and the gun is elevated about the trunnions f by the device i. When firing at air targets, the pin e is removed and the gun is swung about the pivot c by hand, the spring device k counterbalancing the weight of the gun. A clamp may be provided at the pivot c for holding the gun in an elevated position, any slight adjustment then being made by the elevating device i. In a modification shown in Fig. 2. the upper carriage d is in the form of a two-armed lever, and is arranged between the gun and a rotatable head g of the undercarriage. For firing at large elevations, the pins e and c are first withdrawn, the upper carriage is rotated through 180 relative to the under carriage, and the gun is re-connected only at its rear point of connection to the arm d<1> to the upper carriage. For intermediate elevations, the pin e alone is withdrawn and the gun is elevated by hand about the rear connection c, the centre of gravity S being approximately above the connection for each range of elevations.
Patent GB-1491429-A (GB)
Title: Galvanic cell
IPC: G01N27/416
Filed: 1976-03-04
Abstract: 1491429 Solid electrolyte sensor LEEDS & NORTHRUP CO 4 March 1976 [27 March 1975]  08751/76 Heading G1N A solid electrolyte sensor for determining an element in a high temperature fluid comprises a solid electrolyte plug 19 partially protruding from one end of a refractory tube 18, the plug having a generally uniform cross-section such that the protruding portion is not reduced in cross-section and having an irregularity 19b at its surface inside the tube which engages a complementary irregularity 19c in the tube wall to hold the plug in place. The end of the plug inside the tube contacts reference material 20. The plug is preferably of an oxygen conducting solid electrolyte and the reference a metal/metal oxide mixture held in place by mineral wool. The sensor is preferably mounted along with a contact electrode in a probe for determining oxygen in molten metal e.g. steel. The irregularity 19b in the plug wall may comprise a single shoulder as shown or two shoulders comprising the walls of a groove. It preferably extends right round the plug, which is preferably cylindrical. The tube is preferably silica and is fixed to the plug by heating and forcing material into the plug groove, preferably by rotating the tube.
Patent GB-701122-A (GB)
Title: Material for surgical or dental prostheses and for dental repairs
IPC: A61C13/00
Filed: 1951-04-16
Abstract: A product for use as surgical or dental prostheses or in dental repairs is made by intimately incorporating a solid after-halogenated polyvinyl halide or after-halogenated copolymer containing vinyl halide groups, with a liquid polymerisable vinyl compound in which the solid polymerisate is swellable and which consists wholly or mainly of methyl methacrylate, and polymerizing the liquid in the presence of a catalyst.  The halogenated polymer is preferably after-chlorinated polyvinyl chloride and should be in a swellable form.  This may be obtained by swelling in acetone, drying in vacuo and grinding and sifting the loosened mass; or precipitating from a cooled and gelled solution with a non-solvent; or by cutting up extruded filaments into short lengths.  Other compounds which may be added to the methyl methacrylate include butyl acrylate, ethyl acrylate and octyl methacrylate.  Specified catalysts are benzoyl peroxide and toluene sulphinic acid.  Pigments such as cadmium red and titanium dioxide may be added to the compositions which are moulded in plaster or gypsum moulds.  Specifications 401,200 and 484,343 are referred to.
Patent GB-252838-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/58
Filed: 1925-04-03
Abstract: 252,838. Hahle, P. A.., and Industrieund Handels-Ges. April 3, 1925. Cigarette -tipping machines.-Pieces of tipping material having ornamental edges such as that shown in Fig. 5 are detached by the removal of portions a from an endless web 1, Fig. 1, by a punch 20 co-operating with a correspondingly shaped die 19 in a plate 5. The punch 20 is carried bv a slide 21 reciprocated vertically by a lever 22. The detached pieces are fastened to the cigarette paper web 8 at points previously gummed by a rotary gumming stamp 12. The stamp section 15 of the stamp 12 comprises a plate, corresponding in shape with that of the tipping piece and attached to the stamp by screwing. The tipping piece may have a serrated edge, Fig. 8. The web, in this case, is cut by a cutter 20, Fig. 7, having a serrated cutting face 33 cooperating with a correspondingly serrated die 24. A plate 25, pivoted at 28 and having a serrated face 27 abutting against that of the plate 24, is supported by a spring 29 and serves as a resilient cutting-bed. The paper web 8 is led around guide rollers 9, 10, 11, 6, 13, 14. The. stamp 12 receives gum from a reservoir 18.
Patent GB-893626-A (GB)
Title: Pressure bleeder valve
IPC: F16K17/06
Filed: 1959-03-13
Abstract: 893,626. Valves. FOREMAN, E. H. W. March 14, 1960 [March 13, 1959], No. 8884/59. Class 135. A bleed valve comprises a body 1 having a fluid escape passage 5 and threaded to screw into an opening in a fluid-pressure apparatus and a valve 9 controlling a bleed orifice in the apparatus, wherein by unscrewing the body and relieving a spring 14 between the body and valve, fluid pressure opens the valve and decreases to a value determined by the load on the spring and by screwing in the body a portion 15 thereof abuts and positively closes the valve.
Patent GB-119837-A (GB)
Title: Improvements in Airships.
Inventor: SHAW WILLIAM ROBERT DOUGLAS
IPC: B64B1/00
Filed: 1918-05-30
Abstract: 119,837. Shaw, W. R. D. May 30, 1918. Aerial machines withaerostats; aerostats; cars and cabins planes, arrangement of.- An airship comprises a girder a, a' of T-form to which are attached aerostats b, c, d. The girder is covered with fabric and serves to carry passengers, guns, &c., being fitted with a look-out a<2>, doors a<4>, and windows or gun apertures in the sides of the horizontal portion a. The rear end of the horizontal portion a extends each side of the aerostat to form a tail-plane to which elevators h are attached, the upper surface of the tailplane being fitted with windows. The part a' of the girder forms a keel, to the rear end of which the rudder g is hinged. The aerostats may be detachably connected to the girder by means of rings and safety-hooks. Land wheels a<3> are fitted as shown. Propelling.-Motors k are arranged at opposite sides of the girder portion a for driving propellers m.
Patent GB-549126-A (GB)
Title: Improvements in or relating to the manufacture of screw thread gauges
IPC: C25D7/00
Filed: 1941-07-17
Abstract: 549,126. Screw thread gauges. FINDING, E. C., and BALL, W. H. July 17, 1941, No. 9023. [Class 41] Anodes A for the deposition of a hard metal such as chromium on screw-thread gauges are formed with ribs C and grooves B corresponding in form and pitch with the threads to be plated. The articles may be slowly rotated during the plating operation or anodes of tubular form internally ribbed and grooved or threaded may be employed. For the plating of internally-threaded gauges, ribbed or threaded anodes of rod or bar form are used.
Patent GB-396160-A (GB)
Title: Improvements in and relating to electric power converting apparatus
IPC: H02M7/44
Filed: 1932-03-30
Abstract: 396,160. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Sabbah, C. A.; 1, Washington Avenue, Schenectady, New York, U.S.A.) March 30, 1932, No. 9149. Convention date, March 30, 1931. [Class 38 (ii).] Relates to a series type inverter using indirectly heater cathode valves with non- insulated cathode heaters supplied from the D.C. circuit and consists in inserting in the heater circuit reactances to prevent short circuiting of the alternating potentials appear. ing across the valves. The cathode heaters of the valves 15, 17 are supplied from the D.C. circuit 10 through inductively coupled reactances 18, 19. The fluxes produced in the tone by the windings 18, 19 cancel when direct current is flowing, but any alternating potentials appearing across the valves cause alternating currents to flow in the windings which produce fluxes that are additive, so that the winding become highly reactive to alternating currents. Specifications 347,474 and 364,579 are referred to.
Patent GB-566169-A (GB)
Title: Improvements relating to radio navigational systems
IPC: G01S1/02
Filed: 1942-07-03
Abstract: 566,169. Directive wireless signalling ; valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. July 3, 1942, No. 9263. [Class 40 (v)] Relates to an equi-signal overlapping-beam transmitter in which the beam is oscillated by changing the phase of currents fed to two or more antennµ and particularly to a transmitter in which a central antenna is fed with current of constant amplitude and phase and two or more outer antennµ are fed with currents displaced - 90 degrees and + 90 degrees with respect to the current in the central antenna and are periodically reversed in phase to obtain the required field pattern. The amplifying valves A, B are fed from the same source RF in push-pull and parallel modes with the desired phase difference between the driving voltages of the two modes, and the load circuits O1, O2, O3 are so coupled to the output circuits of the valves that the outputs corresponding to the two modes are separated to feed the loads as desired. The input RF is connected through a phase-shifter K to the grid of valve Z and direct to the grids of valves X, Y which are blocked alternately by a keying circuit CKS, the valves X, Z and Y, Z being operative in turn to produce the two patterns. The anodes of valves X, Y are connected to opposite ends of coils L1, so that when X is operative energy is supplied in push-pull to the valves A, B the phase being reversed when Y is operative. The anode of valve Z is connected through reversed coils L2 to supply energy of intermediate phase to valves A, B in parallel. The output circuits of valves A, B are so arranged that energy of intermediate phase from Z is fed over circuit 02 to the central aerial, and energy is fed over circuits O1, 03 to the outer aerials in opposite phase, which is reversed each time X or Y is operative. In a modified system, not illustrated, the keying circuit may be connected to two valves Z (instead of to X and Y), the valves Z being energized alternately to reverse the phase of the voltages applied in parallel to the valves A, B.
Patent GB-567323-A (GB)
Title: Improvements in or relating to boxes, cartons or like containers
IPC: B65D81/07
Filed: 1943-06-10
Abstract: 567,323. Containers for thermionic valves &c. SHIRLEY & CO., Ltd., R. L., GREGORY, A. D., and SEARLES, C. E. June 10, 1943, No. 9343. [Class 18] A container 3 for fragile articles such as thermionic valves, cathode - ray tubes, &c., is received between two caps 8 connected by springs 9 to two caps 7 slidable in an outer casing 1 and secured within the outer casing against the pull of the springs by flaps 2 of the outer container secured in position by adhesive or other suitable means. Openings 5 are provided in caps 7 to facilitate assemblage. Instead of springs, elastic or rubber buffers are employed.
Patent GB-407535-A (GB)
Title: Improvements in casings for toothed gearing
IPC: B21B35/12
Filed: 1933-03-28
Abstract: 407,535. Casings for toothed gearing. DEMAG AKT.-GES., 64, Werthauserstrasse, Duisburg, Germany. March 28, 1933, No. 9378. Convention date, April 26, 1932. [Class 80 (i).] A pinion stand for rolling mills has a casing provided at both ends with recesses for the bearings 12 of the pinion journals, and divided into two parts 5 releasably connected together in the symmetrical plane AB containing the pinion axes. In the form shown in Fig. 2, the casing also comprises a lower part 6 whose horizontal joint with the upper parts 4, 5 passes through the axis of the lowermost gear. In the form shown in Fig. 3, reducing gearing 9, 10 is added, the joint between the lower part 6 of the casing and the upper parts passing through the axis of the gear 10. According to the Specification as open to inspection under Sect. 91, the invention is applicable to gear-casings generally. This subject-matter does not appear in the Specification as accepted.
Patent GB-1496416-A (GB)
Title: Printing mechanism
IPC: B41J11/38
Filed: 1975-03-06
Abstract: 1496416 Shaft couplings QUME CORP 6 March 1975 [7 March 1974] 9403/75 Heading F2U [Also in Division B6] A disconnectible sheet feed drive mechanism, which may be used in a typewriter or line printing-machine, comprises a rotatable platen 13, a driving motor 39 connected through gears 38, 40 and 41 to rotate the platen 13 in steps and to hold it against rotation between steps, and a clutch interposed between motor and platen so that when the clutch is disengaged the platen 13 can be rotated independently of the motor, to determine the starting point for the next rotational step. The platen shaft 42 is journalled in a bearing 75 and has an axial bore 67 into which plunges a stub shaft 66 carrying a knob 15. A bevel-toothed clutch member 54 is secured by a pin 62 to the stub shaft 66, and the pin 62 passing through transverse slots 64 also keys the platen shaft 42 to rotate with the clutch member 54 but permits relative axial movement. The gear member 41, mounted for free rotation on shaft 42, is provided with internal bevel teeth 52, normally held engaged with the teeth of clutch member 54 by a bias spring 68. The clutch member 54 may have two segments removed, thus presenting two parallel side faces 56, 57, Fig. 4, which are engaged by two segmentally shaped projecting arms 72, 73, integrally formed on the output gear member 44 which is secured to shaft 42. Manual axial pressure on the knob 15, compressing the spring 68, can disengage the bevel teeth of members 41 and 54, thereby permitting the knob 15 to be used for manually adjusting the angular position of the platen and output gear 44, relatively to that of the input gear 41. In the embodiment of Fig. 3, a stepping motor 39 intermittently drives both the platen 13 and also a splined shaft 25 which conveys motion to two feed heads 34, each having a tractor belt carrying conical projections 27 which engage perforations in the document web margins. In another embodiment (not shown), two separate platens on a common axis may be provided, with separate feed heads 34, each having an independent drive means, and an independed manually - disconnectible clutch, thereby permitting two separate document webs to be adjusted mutually in relative position, for line printing side by side.
Patent GB-1085278-A (GB)
Title: Improvements in parking light fittings for vehicles
Inventor: HOLLAND HUBERT ROY
IPC: B60Q1/48
Filed: 1964-03-05
Abstract: 1,085,278. Vehicle parking lights. HALROY PRODUCTS Ltd. March 5, 1965 [March 5, 1964], No. 9452/64. Heading F4R. A parking light for vehicles consists of a casing 1 in which is a removable unit comprising a photo-electric switching circuit and a lamp controlled thereby. The casing is made in two parts 1a, lb each having an undercut rib 2 along the adjacent edges, a flanged strip 3 sliding over the ribs to secure the halves of the casing together. Lenses 4, one clear and one coloured red, are provided on the casing opposite to a lamp (not shown), which is controlled by a photo-electric switching circuit, e.g. of the type described in Specification 1,072,394, the photoelectric cell being mounted opposite an opening 8 in the lower part of the casing. The casing is mounted by means of a clip 5 which can be hooked over the edge of a car window and is adjustable relative to the casing.
Patent GB-547123-A (GB)
Title: Piezoelectric crystal apparatus
IPC: H03H9/19
Filed: 1941-07-26
Abstract: 547,123. Piezo-electric crystals. STANDARD TELEPHONES & CABLES, Ltd. July 26, 1941, No. 9517. Convention date, Aug. 3, 1940. [Class 40 (v)] A quartz crystal element 1 is designed to have a low temperature coefficient in a flexure mode frequency dependent mainly on the length and width of its major surfaces, by having the length dimension L at an angle # of between 0 degrees and 10 degrees to the Y axis of the crystal, the major surface inclined at an angle # between 30 degrees and 75 degrees to the YZ plane and the ratio of width W to length between .05 and .95. Graphs are given relating W and L to fre. quency to enable the optimum values for a given frequency. Each major surface is provided with electrode coatings 3, 4 having lugs 5 arranged at nodes for clamping on the attachment of leads. Adjacent coatings are energized in opposite polarity to cause flexure mode oscillation. The crystal may be mounted between spring urged pins of gold-plated brass, or by fine wire conductors soldered on to the points 5, and enclosed in an evacuated envelope. The mountings described in Specifications 239,175, [Class 40 (v)], and 467,724 may be used.
Patent GB-442633-A (GB)
Title: Improved means for supporting glass or other sheets while undergoing tempering or heat treatment
IPC: C03B35/20
Filed: 1935-03-27
Abstract: 442,633. Tempering sheet glass. DUNLOP, S., 49, Chancery Lane, London.- (American Securit Co. ; 927, Market Street, Wilmington, Delaware, U.S.A.) March 27, 1935, No. 9594. [Class 56] [See also Group II] A device for supporting glass or other sheets while undergoing temper ing or other heat treatment comprises a thin metal band adapted to engage the edge of the sheet and also to engage its sides at a number of points, the band being flexible in the plane of the sheet and stiff in a direction perpendicular thereto. The metal band 1, Fig. 1, has serrated edges 1<a> which are bent at right-angles to embrace the sides of the sheet. After the band has been applied, the sheet may be supported by a number of forked members 2 which are clamped by bolts 4 between the sides of a rectangular frame 3 formed of angle irons. Slots 2<a> in the members 2 enable them to be clamped in any desired position of adjustment. The forked ends may be constituted of thin metal of low conductivity, such as nickel-chrome alloy. The frame 3 and the members 2 may be dispensed with, as shown in Fig. 6, the glass sheet A being supported by the band 1 which is attached to suspending members 8. The band is formed by a wide strip of metal which has lugs 1<b>, Fig. 7, punched out and bent at right-angles to embrace the edges of the sheet A.
Patent GB-566315-A (GB)
Title: Improvements in and relating to flame de-skinning and like nozzles
IPC: F23D14/54
Filed: 1943-06-16
Abstract: 566,315. Blow-pipe burners. OXYFERROLENE, Ltd., and HOBBS, J. June 16, 1943, No. 9674. [Class 75 (i)] A metal surfacing or de-skinning burner nozzle comprises a tubular body 1, the central bore 2 of which forms the oxygen passage and is flared or formed with an enlargement 4 adjacent the discharge orifice 3, and a surrounding sleeve 11 coned internally at its forward end 20 to fit over a grooved enlargement 5 of the body 1 and formed at its rear end with a flange 19 having a coned edge 10 to seat against a coned flange 7 at the rear end of the body. The body 1 and sleeve 11 are secured against seatings in the nozzle holder by a nut 23 engaging the flange 19. The fuel gas passes from the holder through a circular series of passages 17 in the flange 7 to an annular space 18 between the body 1 and sleeve 11 and is discharged through rectangular grooves or channels 6 in con. verging jets about the oxygen jet. A ring 22 of stellite or other refractory material may be pro. vided at the forward end of the sleeve 11.
Patent GB-172902-A (GB)
Title: Improvements connected with oil stoves
IPC: F24C5/04
Filed: 1921-04-01
Abstract: 172,902. Rippingilles Albion Lamp Co., Ltd., and Lowe, H. April 1, 1921. Portable oil stoves; supports for articles heated. -A boiling and frying device for attachment to the grid f of an ordinary flat-wick oil stove comprises a frying-chamber g and a boiling-chamber h. The base-plate i of the device is provided with flanged edges i<3>, i<4> engaging the grid and enabling the attachment to be slid on and off. The combustion products from the flue e of the stove pass partly through an opening h<2> in the base-plate to heat a utensil placed over the boiling-chamber, and partly under the frying-chamber g, the ends of which are open for the insertion of a pan j. The ends of the frying-chamber may be closed, the top then being hinged for opening. A similar attachment for oil stoves having two burners and grids comprises a frying chamber over each grid, with one or two boiling-chambers between them.
Patent GB-124645-A (GB)
Title: Improvements relating to Photographic Cameras.
Inventor: TWEMLOW SAMUEL POOLE
IPC: G03B19/04
Filed: 1918-06-13
Abstract: 124,645. Twemlow, S. P. June 13, 1918. Cameras, roll-film.-The reel-pins a are normally held out of operative engagement with the spool b by springs c. When the spool is inserted, the pin a is pressed into operative engagement with the spool and a spring catch f springs over the projection g on the pin and holds it. To remove the spool, the catch f is disengaged and the pin a springs out. Similar pins and catches may be used at both ends of the spool and released simultaneously by a cross-bar i having projections j at each end to disengage the catches f.
Patent GB-917743-A (GB)
Title: Improvements in jaw crushers
Inventor: DAVIDSON DONALD JOHN
IPC: B02C1/04
Filed: 1961-03-17
Abstract: 917,743. Jaw-crushers. PEGSON Ltd. Feb. 26, 1962 [March 17, 1961], No. 9761/61. Class 59. In a jaw crusher which has its movable jaw 8 driven by a pitman 11 and toggle plates, the toggle-plate 13 connected with the movable jaw bears on a seat 18 which is adjustable on the jaw and arranged to be clamped in the adjusted position. One or more shims 20 are used to adjust the seat and these are retained against longitudinal movement by a depending lug which ensures a recess in a step portion 19 of the jaw, a clearance 30 being provided between the top of the shims and a block 21 which clamps the seating in position. The seat 18 is also provided with a depending lug engaging in the recess in the step 19. The clamping block 21 is moved to and from the seating 18 by means of a pair of rods 22 which are secured to the block and slide in lugs 23, 24 on the rear of the jaw under the action of nuts 28, 29 on threaded portions of the rods.