baber/WOPTO huggingface dataset:
Patent GB-631614-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F13/00
Filed: 1947-05-06
Abstract: 631,614. Making lifting - jack bodies. SHELLEY, Ltd., R. T., and DARBY, A. May 6, 1947, No. 12156. [Class 83 (ii)] [Also in Group XXX] - A method of making a body for a screw lifting-jack consists in pressing and/or raising a sheet-metal blank a to form a ground-engaging base and two semi-cylindrical side portions d which are adapted to be folded upwardly to fit against a hollow pillar h to which they are welded at their upper ends. The blank a, Fig. 4, is pierced from sheetsteel and at each end is a laterallyprojecting lug b. The blank is then pressed, bringing it to the form of Fig. 5, where the central part is left flat but the sides are turned upwards to form lips c and each end becomes a half-cylinder d united to the base by a flared part e, lugs b being shaped to the form of a quarter-cup f. A ring or socket g is then welded to the centre of the flat part or an annular ring or shoulder may have been pressed therein to receive the lower end of the pillar h, the end parts being then folded up and welded at their upper ends to the pillar. The quarter cups f form a housing for the usual bevel gear, which is completed by a cylindrical member k formed from heavier gauge sheet-metal. A bearing for the inner end of the bevel pinion is formed of a pressing j welded to the pillar within the housing. The pillar is preferably rolled from sheet-metal so that a gap is left forming a keyway in which works a key on the usual screw spindle housed within the pillar to prevent the spindle from rotating. Ribs may be pressed in the sides of the body for stiffening.
Patent GB-968508-A (GB)
Title: Improvements in or relating to a machining process by electro-erosion
IPC: B23H7/28
Filed: 1961-04-05
Abstract: 968,508. Removing metal by spark erosion. ATELIERS DES CHARMILLES S.A. April 5, 1961 [April 6, 1960], No. 12175/61. Heading B3V. In a spark erosion process using a rotary electrode 5 for machining a workpiece 1, a further relative movement is provided between the electrode and workpiece to ensure that during a machining operation each portion of the electrode working surface is used once only. The electrode 5 is mounted on a shaft 6 supported rotatably on the piston rod 7 of a servomotor piston 8 moved downwardly automatically during the process. Shaft 6 carries a pinion 10 meshing with a stationary rack whereby the electrode is rotated during its downward movement. Sparks are produced between the electrode and workpiece, which are immersed in a dielectric such as petrol, by a generator G. In another embodiment, Fig. 3, for machining a conical hole in the workpiece 1, the conical electrode 26 is mounted on a shaft 25 driven through a cardan shaft 29 and gears 28, 27 from a shaft 15. Shaft 25 is journalled in a bearing 20 mounted for transverse adjustment by a screw along a rail 18 of a rotating tube 14 also driven by shaft 15 through gears 16, 17 whereby the shaft has a planetary motion about the axis of tube 14. In another embodiment, Fig. 6 (not shown), a rotary electrode is used for machining a contoured surface by a radial movement produced from a template engaged by a follower on the electrode carrier; the electrode may also have an axial movement. In a further embodiment, Fig. 7 (not shown), a cylindrical rotating electrode used for finishing a cylindrical or a conical bore has a helical working surface and during machining is moved both axially and with a planetary movement. In another embodiment, Fig. 8, for machining a helical thread on a workpiece 38, the latter is driven by a motor M1 which also drives through gearing 40, 41, a screw 42 producing longitudinal displacement of an electrode support 44 carrying a motor M2 for rotating the disc electrode 45. In a further embodiment, Fig. 9 (not shown), a circular workpieoe is formed with a contoured periphery by a roller electrode having a circumferential groove forming the working surface; both the workpiece and electrode are rotated in the same direction through gearing by a single motor.
Patent GB-528196-A (GB)
Title: Improvements in and relating to the reclamation of waste rubber
Filed: 1939-04-22
Abstract: 528,196. Reclaiming waste rubber. RUBBER IMPROVEMENT, Ltd., LEWIS, J., and LEWIS, S. C. April 22, 1939, No. 12183. [Class 70] Rubber is separated from waste containing canvas &c. by agitating the ground or cracked material in a horizontally-disposed digester 1 by means of rotating inclined paddles or blades 6-9 mounted on a shaft 4, so that the mass is moved progressively towards and away from the ends of the vessel ; the canvas &c. accumulates at the ends 11, 12, the reclaimed rubber remaining in the intermediate portion of the vessel. In the construction shown, the pitch or inclination to the shaft of the pair of blades 6, 8, is opposite to that of the blades 7, 9. Saturated or superheated steam is introduced into the mass through the connection 5 at a pressure of 150-200 pounds per square inch ; the process occupies from 10 to 20 hours. Manholes 2, 13, serve respectively for introduction of the waste and removal of the reclaimed rubber.
Patent GB-446311-A (GB)
Title: Improved stop valve
IPC: F16K3/12
Filed: 1935-04-24
Abstract: 446,311. Stop valves. WOOD, H., Bishop Street, Cabarita, near Sydney, Australia. April 24, 1935, No. 12312. Convention date, June 16, 1934. [Class 135] A stop valve has a hollow crosshead 11 sheathing a threaded valve spindle 19 in the fully open position of the valve, the crosshead having spigots 10 supporting two valve plates 8, and side wings 12 to which are fixed leaf springs 15 pressing the valve plates against converging seats 9. Flanges 6 on the valve plates are guided by guide runners 5 at the corners of the valve chest 4. The upper end of the crosshead is threaded to engage the spindle 19, and its lower end has a drain plug 17.
Patent GB-790764-A (GB)
Title: Improvements in or relating to semiconductors with temperature-variable resistivity
IPC: H01C7/04
Filed: 1954-04-28
Abstract: 790,764. Temperature-sensitive resistors. WEISHEIT, G., and WEISHEIT, nee LAABS. H., [trading as INGENIEURBUERO WEISHEIT & CO.], and RESEARCH INTERESTS, Ltd. April 28, 1954 [April 28, 1953], No. 12324/54. Class 37. [Also in Group XXXVIII] A temperature-sensitive resistor is produced by melting a mixture of oxides selected from the light metal group Li, K, Na, Ba and Mg, oxides from the heavy metal group Mr, Zn, Ni, Fe, Pb, Sn, Cu, Ag, Hg and Au and ceramic materials (i.e. quartz sand and silicious materials such as Andalusite, sillimanite, caolin, Montmorillonite, and micaceous clays), the melting being carried out on, and by means of, electrodes with a melting point of about 2000‹ C. so that on cooling the mixture unites with the electrode. The mixture preferably comprises 4-20 per cent light metal oxides, 3-19 per cent heavy metal oxides and 61-93 per cent of ceramic materials. Before melting, the mixture is partially reduced, and then melted in an atmosphere comprising a predetermined amount o oxygen to effect partial reoxidization, and rapidly cooled. The mixture, preferably in the form of a paste made by mixing the materials in powdered form with a liquid comprising oxygen, is applied to the electrodes and heating effected by passing current through the electrodes. Various forms of probe for measuring flow and other temperatures are described. Fig. 1 shows a probe in which the resistance mass 1 on electrodes 3 is mounted in a glass or quartz envelope 2, in vacuo or a gas atmosphere. In other examples the resistance mass is exposed partly or completely, and the glass envelope or tube may be large to increase the heat capacity of the probe. A metal tube, which may serve as an electrode, may be used in place of the glass envelope 2. The probe may also be surrounded by a perforated screen so as to permit only a low flow velocity. Three electrodes may be used to provide two equal measurements for separate control purposes. Fig. 11A shows the resistance mass supported by two flag-like electrodes 33, 34. An arrangement for measuring high temperature is described in which the resistance mass is placed against the cold junction of a thermocouple, the hot junction of which is placed in the hightemperature region to be measured, the resulting thermo-electric current causing the temperature sensitive resistance mass to be heated.
Patent GB-283396-A (GB)
Title: Gas-saving device for use in connection with gas-cooking and heating appliances
IPC: F24C15/10
Filed: 1927-05-09
Abstract: 283,396. Wight, F. May 9, 1927. Heat distribulers; supports for articles to be hrated.-A device for heating utensils over a burner comprises a plate A with two or more apertures C and with strengthening-ribs F surrounding, and spaced a short distance from, each aperture. Legs J may be provided.
Patent GB-218433-A (GB)
Title: Improvements in and relating to means or projection devices for piercing or penetrating objects
IPC: A22B3/02
Filed: 1923-05-08
Abstract: 218,433. Temple Cox Research Co., Ltd., and Temple, R. May 8, 1923. Breech actions, hinged breech-block; firing appliances; safety appliances.-Relates to explosion-propelled projection devices for piercing or penetrating objects and more particularly to cattle slaughtering appliances. The projectile or bolt 1 is arrested, after doing its work, by the removal, displacement or distortion of metal and, as shown in Fig. 2, a cutting-tool 15 cuts into the bolt which is distorted at 15<a>. The appliance is fired by pressing a button 11<a> against the object to be penetrated, e.g. the animal's head, and safety means are provided to obviate accidental discharge. The breech is interconnected with the tool 15 whereby the tool is displaced when the breech is opened to allow the appliance to be withdrawn from the embedded bolt, an automatic extractor ejecting the spent cartridge. The bolt 1 is preferably of D-shaped section for the greater part of its length and the end 1<b> is circular, forming a shoulder into which the tool 15 cuts. The breech 4 is fixed on one end of a revoluble shaft 5 the other end of which is provided with a pinion 5<b> which engages with a rack 15<d> on the tool 15 which is slidably mounted in the wings 14. A clearance may be provided on the under side of the tool 15, as provided with lathe tools, and its upper surface 15<c> is bevelled, the angle being greater than 16‹ to prevent jamming in the guides. The safety trigger 13<a> actuates the racks 13<b>, 11<b> and the pinion 10<a> whereby the combined length of the firing rods is increased to an extent sufficient to actuate the spring-pressed sear-carrying rod 7<a> which releases the spring-operated plunger 6a. The plunger 6<a> engages the bevelled portion 4<b> of the striker 4<a> which is thus projected against the cartridge 2. The breech-block has a hooked extension 4<c> which engages the portion 3<a> of the barrel. The cartridge ejector 8 is pivoted at 3<b> to the breech end of the barrel and its nose 8<a> engages the rim of the cartridge 2. The arm 8<b> of the ejectoi 8 is engaged by a pin 5<a> on the shaft 5 which moves the ejector outward when the breech opens, the projection 8<c> engaging a returning spring 8<d>. The handle 9 is secured to the device by a U-bolt 9<a> and nuts 9<b>. The tool 15 may be displaced by an angular movement instead of a sliding movement.
Patent GB-767971-A (GB)
Title: Improvements in or relating to electric devices having a cap mounted on a glass neckpart of an envelope
Inventor: BROWN LESLIE HERBERT
IPC: H01J5/60
Filed: 1954-04-29
Abstract: 767,971. Capping electric lamps. GENERAL ELECTRIC CO., Ltd. April 22, 1955 [April 29, 1954], No. 12482/54. Class 39(2) Caps are secured to the tubular necks of the sealed bulbs or envelopes of electric incandescent lamps and the like by providing the neck 2 with one or more grooves, such as 3, each of substantially uniform depth and extending circumferentially part way around the neck, and arranging within each groove a bent metal strip 7 which fits closely between the sides thereof with its ends abutting against the ends of the groove and part of its surface projecting slightly beyond the surface of the neck of the bulb, the cap 8 being provided with a metal skirt 9 which fits over the bulb neck and over each strip 7 which it presses into its corresponding groove, the abutting portions of the cap 2 and metal strip or strips 7 being secured together by soldering or welding. Fig. 1 shows the neck 2 of a bulb 1 provided with a single groove 3 formed by moulding, and extending almost completely around the circumference of the neck, there being an intervening ridge of glass 4 which forms abutments for the ends of an incomplete brass ring 7. The lamp cap 8, which is also made of brass may be of either the bayonetjoint or screw-threaded type. The cap may be secured to the ring 7 by a paste solder of known kind which is applied to the inner surface of the skirt 9 of the cap prior to fitting the cap in position and, in mass production, the heating apparatus used for curing the cement located between the bulb and cap may be. adapted for melting the solder. Aluminium may be used in some cases for the ring and/or the cap in conjunction with appropriate solder and flux. Fig. 3 shows a modification whereinthe bulb neck is moulded with three short circumferential grooves 12 into each of which is fitted a bent, resilient, metal strip 13 the bowed part of which extends beyond the outer surface of the neck 11. When the skirt 14 of the cap is fitted over the neck of the bulb the strips 13 are pressed down into the grooves, and their ends abut against the ends of the grooves. The skirt is next soldered or welded to the strips 13 at the regions 15 where they are in contact.
Patent GB-576026-A (GB)
Title: Devices for mounting cameras, bomb-sights and the like apparatus on airplanes in level and oriented position
IPC: B64D47/08
Filed: 1943-08-04
Abstract: 5 7 6 ,0 2 6. Aerial camera and bombsight mounts. ROBINSON, C. S. Aug. 4, 1943, No. 12586. Convention date, March 23, 1942. [Class 98 (i)] [Also in Group XXI] An aerial camera or bombsight mount comprises a primary pair of gimbals having their axes fixed parallel to the longitudinal and transverse axes of the aeroplane and a secondary pair of gimbals having their axes transverse to each other, to one of which the camera or bombsight is attached, the secondary pair of gimbals being rotatably mounted on the first pair for rotation in azimuth relative thereto so that the axes of the secondary gimbals may be set parallel and transverse to the direction of flight relative to the ground when flying in crosswinds and the primary levelling may be set on axes co-ordinated to the principal axes of the aeroplane. The secondary gimbals may have resilient axes transverse to each other. As shown, a main frame 7 is secured to the aeroplane floor 2 by feet 6, and carries pivots 9 supporting a gimbal ring 10, which itself carries pivots 11 supporting a gimbal ring 12. A ring 14, rotatable in ring 12, carries a rack 14<1> which drives the view-finder 3 carried by ring 12 through a pinion, a worm 16, and a worm-wheel 17 by the same angular amount as the camera 1. The ring 14 has flanges supporting resilient pivot cushions, e.g. of sponge rubber, on top of which are flanges of the gimbal ring 18 and also supplementary resilient cushions 19, bolts fixed to the flanges of ring 14 passing through the cushions and carrying adjusting nuts 21 pressing on plates 22. The ring 18 carries similar resilient pivots supporting brackets 30 in which the camera trunnions are clamped. The resilient pivots permit temporary manual adjustment of the camera, which returns to the central position of release. Cams 32 rotatable by hand grips 36 are attached to the gimbal ring 10 and bear on the stationary main frame 7 and are held set by spring-pressed friction brake shoes 37. On turning the cams 32, connected by shaft 34, the gimbal 10 can be set for continued deviation from horizontal of the longitudinal axis of the aeroplane. A similar cam 33 controls the gimbal 12. Stainless steel springs are inserted between gimbal 12 and ring 14 to control the movement of the latter. Clamps are described for the camera trunnions and for the nose or barrel when so held.
Patent GB-746995-A (GB)
Title: Improvements in or relating to a tool-or equipment-box or the like, more particularly for repair workshops
IPC: B25H3/02
Filed: 1954-04-30
Abstract: 746,995. Stands combined with boxes. ZERVER, A. April 30, 1954 [May 2, 1953 ; Dec. 16, 1953], No. 12667/54. Class 52(3). [Also in Groups XVII and XXIII] A box has one-or more columns 5, 6 on which a lid 8 and one or more intermediate trays 7 may be raised, the lid acting as a work table. The lid may be retained in its raised position, by spring loaded pins (not shown) entering holes in the columns, the trays 7 being suspended from the lid by chains 20, 21. Alternatively the trays also may be secured by spring loaded pins. A light 29 and wheels 2, 3 may be fitted, and a seat 30 may be housed as shown, one leg being contained in a tube 32, or a seat plate may be pivoted to a column. The lid is locked in its box closing position either by a padlock or by bolts entering holes in the columns. Rubber beads 35 prevent damage. The trays may incorporate adjustable partitions. The columns need not be vertical.
Patent GB-932286-A (GB)
Title: Improvements in or relating to the preparation of catalysts
Inventor: BOSC ROBERT
IPC: B01J21/04
Filed: 1961-04-07
Abstract: A process of producing agglomerated alumina-based catalysts having improved resistance to attrition comprises agglomerating a powdered catalyst, at least a part of the powder having been obtained from a previously agglomerated alumina-containing catalyst, and subjecting the agglomerates thus obtained to ageing in a humid atmosphere followed by calcination.  If desired fresh catalytic materials or their precursors may be added to the powder obtained from the previously agglomerated alumina-containing catalyst before the mixture is agglomerated.  Preferably the alumina used is c -alumina. Examples are given in which catalysts containing mixed oxides of molybdenum, cobalt and aluminium or iron and aluminium are prepared and their attrition rates compared with similar prior art catalysts.
Patent GB-1404439-A (GB)
Title: Photographic silver halide material for colour reversal  development
IPC: G03C7/392
Filed: 1973-03-16
Abstract: 1404439 Photographic silver halide colour reversal material AGFA-GEVAERT AG 16 March 1973 [16 March 1972] 12746/73 Heading G2C A photographic material not containing colour couplers comprises at least one red-sensitized, one green-sensitized and one blue-sensitive silver halide emulsion layer and in the blue-sensitive and/or the red-sensitized silver halide emulsion layer contains as a colour development accelerator a chemical compound which, under the conditions of colour development, reacts irreversibly with the oxidation product of the colour developer used for reversal development without forming an image dye. The chemical compound may be present in diffusion resistant form but may contain alkalisolulidizing and/or diffusion inhibiting groups. The chemical compound may be a black and white developing agent whose redox potential at the given pH value of the colour developer solution is such that the colour developer oxidation products can be reduced again e.g. 2,5-di-octylhydroquinone (Ex 1 and 2) or a white coupler.
Patent GB-447948-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/14
Filed: 1935-04-29
Abstract: 447,948. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. April 29, 1935, No. 12770. Convention date, April 28, 1934. [Class 38 (ii)] [See also Group XL] The ignition of the arc or glow discharge in the tube 1, Fig. 1, described in Specification 447,947 is determined by magnetic means which comprises a laminated core 22 provided with polepieces and with windings 23, 24, 25. The winding 25 is connected to a source of alternating-current 27 through a variable resistance 30 and a tapping, and the coils 23, 24 are wound in opposite directions and are energized from a continuous-current source through a resistance 29 and a variable tapping 28. In another form, the tube is supplied from a source of alternating-current 36, Fig. 5, which is also used for energizing through a transformer 35 a coil 34 on the magnet 31. The intensity of the field may be varied by an armature 33 which is rotatably mounted in a gap in the magnet and may be permanently magnetized or adapted to carry a coil energized by continuous current. In a further form, the armature may be adapted to be pushed to a varying extent into the gap which may be tapered. A portion of the magnet may have a reduced cross-section which at a predetermined intensity becomes saturated. The armature 33 may be connected through mechanism to a rotating device, such as a grindstone. When the speed of the device reaches a predetermined maximum, the armature is rotated to ignite the discharge to operate relays or control devices which reduce the speed. Specification 309,447, [Class 39 (i)], is referred to.
Patent GB-549794-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B49/04
Filed: 1941-03-12
Abstract: 549,794. Thermal switches. KLEEN, N. E. Af. March 12, 1941, No. 12853. Divided out of 547,978 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 28, 1941. [Class 38 (v)] [Also in Group XIII] Absorption systems. Means for controlling the alternate heating and cooling of linked reversing systems out of phase is adapted to effect a pause in the reversal, during which the heat supply is cut off from both generator-absorber vessels. Thermal elements associated with the generator-absorber vessels transmit fluid pressure to a chamber around a single bellows member 22a as described ir Specification 547,978. A rod 25b attached to the end of the bellows and restrained by side blade springs 92 engages an impact face 30a or 31a on a rocker member 81 connected to a snap-action 'spring 85. Stop members 83, 84 on the rocker engage the end of a cylinder 80 movable with the bellows in expanding to prevent a complete rocking moment until the bellows is again retracted. Specification 549,779 also is referred to.
Patent GB-272186-A (GB)
Title: Multiple tube cleaner
IPC: F28G15/04
Filed: 1927-05-13
Abstract: 272,186. Guggenheim, D., Guggenheim, M., Guggenheim, S. R., Guggenheim, S., MacGowan, J. K., and Smith, E. A. C., (trading as Guggenheim Bros.), (Assignees of Burdick, C. L.). June 5, 1926, [Convention date]. Cleaning internally, non-rotary appliances for. - In a multiple tube cleaner, the individual cleaners are actuated solely by their own weight. The tubes 37 are cleaned by cleaners 31 with brush or plunger scraper heads 32 and are loosely supported in holes in a plate 26 movable vertically by the rotation of screws 27 through bevel wheels 24, 20, 17 actuated from a motor 15. The screws 27 are mounted in a frame 10 supported on a trolley 11 movable on rails by means of a motor 13 and a train of gear wheels. A crane 41 is provided for raising the cover 43 of the tube container 34 and the mechanisms are controlled from a handle 14, a switch 40 and two electromagnetic switches 38, 39, which cause the motion of plate 26 to be automatically reversed. Specifications 253,868 and 261,731, [both in Class 29. Cooling &c.], are referred to.
Patent GB-455973-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J29/86
Filed: 1935-04-30
Abstract: An optical lens for a cathode-ray tube is moulded from transparent synthetic resin.  Two lenses moulded from the resins known under the Registered Trade Marks " Trolitul " and " Perspex " may be used to form an achromatic combination.