baber/WOPTO huggingface dataset:
Patent GB-664876-A (GB)
Title: Improvements in or relating to devices for testing the hardness of metals
IPC: G01N3/00
Filed: 1949-07-27
Abstract: 664,876. Testing physical qualities of materials. ERNST, A. June 5, 1950 [July 27, 1949], No. 19787/49. Class 106 (ii). In a hardness-testing apparatus having a plunger which is manually pressed against the test surface and an indentor which is thereby subjected to a predetermined force, the position of the indentor relative to the plunger being indicated on a scale, the manual pressure is applied through resilient means which yield when the manual force exceeds a value slightly greater than the predetermined force applied to the indentor. Contact between the plunger and test surface is thus ensured and penetration of the plunger itself is thus prevented. The plunger 12 is slidable in a base 10 placed on the test surface and carries a sleeve 34. A spring 36, arranged between flanges on the sleeve and an annulus 38, is partially compressed and holds the annulus against a disc 23 secured to the plunger 12. The plunger is normally held in an upper position by a spring 44 which acts on the annulus. Manual pressure is applied to a winged member 43 pivoted to the annulus and serves first to lower the plunger into contact with the surface, the spring 36 not yielding. The indentor 14, which is slidable within the plunger 12, penetrates the material under test under the predetermined load of a spring 16 acting between the plunger and the indentor, relative movement between which is indicated by liquid in a transparent tube 28 connected with a chamber carried by the plunger and closed by a diaphragm 27 to which is secured a metal plate 30 engaged by the indentor. A suitable scale of hardness is engraved on a transparent cover 32. A plug 47 is adjustable to alter the zero of the scale. If the manual pressure on the member 43 exceeds that necessary to apply the predetermined load, the spring 36 yields and the annulus 38 abuts the base 10. A groove 48 in the base facilitates the positioning of the apparatus on a curved surface. Specification 627,745 is referred to.
Patent GB-791915-A (GB)
Title: Improvements in or relating to electrodes
Inventor: JR WILLIAM THEODORE ANDERSON
IPC: H01J61/073
Filed: 1954-07-06
Abstract: 791,915. Discharge lamps; cathode constructions; electrode materials. HANOVIA CHEMICAL & MANUFACTURING CO. July 6, 1954, No. 19798/54. Class 39(1). An electrode for a discharge device of the super high pressure type, e.g., a discharge lamp, comprises a core of refractory metal and an outer coaxial sleeve-like cylindrical body having a wall part of tungsten surrounding the core, a hermetic seal being formed at least between the outer ends of the core and surrounding body, and further comprising an activation material which is contained within the sleeve-like body, the body being constructed in a manner which substantially inhibits free egress of the material through the body wall part, and which is constituted by non-metallic compounds which are capable of being reduced, at the high operating temperatures of the device, by tungsten and the sub-oxide of tungsten, which results from the partial reduction of the activation material, to free activation metal which migrates through the crystalline structure of the sleeve-like body. In the construction shown in Figs. 3 and 4 a tungsten coil 8 is tightly wound on the tungsten rod 6, activation material 11 being applied to part of the rod 6, to the coil 8 or in the depressions between the windings of the coil 8, and a tungsten coil 12 is tightly wound on the coil 8. The electrode structure is subjected to H.F. treatment and arcing in an inert atmosphere so that the end 10 of the rod 6 and the ends of the coils 8 and 12 are melted together to form a hermetic seal 13 and to pre-activate the electrode by fusion and partial reduction of the activation materials. Activation materials can be in the form of compounds of barium, strontium, zirconium, hafnium, thorium and uranium such as barium zirconate, barium thoriate, &c. In the construction shown in Fig. 5 a cylindrical tungsten sleeve 15 is hermetically sealed to the core 6 and contains activation material 14 comprising barium zirconate or barium thoriate. The envelope of the device is of fused quartz and is spherical or oblate spheroidal and contains a rare gas at a few cms. pressure at about 300‹ Kelvin and a metal in amount sufficient when evaporated to provide 10<SP>21</SP> or more molecules of metal per milliliter. The operating pressure is above 50 atmospheres and the temperature of the discharge between 5000‹ and 11000‹ Kelvin so that the tungsten of the electrode in contact with the discharge is molten.
Patent GB-256969-A (GB)
Title: Improvements in or relating to the selective protection of systems of electric conductors
IPC: H02H1/00
Filed: 1926-08-11
Abstract: 256,969. International General Electric Co., Inc., (Assignees of Allgemeine, Elektricitõts Ges.). Aug. 11, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cut-out arrangements. - Selective protection for line sections is afforded by the use of highfrequencies of different wave length superimposed on the line at the two ends and serving to operate, respectively, tuned relays at the other end so that if a fault develops in the line the high frequencies are no longer received by the relays which thereupon assume the off position and cause the tripping of the circuitbreakers. As shown applied to a single-phase line transformers S of different high frequencies are connected to the line through condensers and the high-frequencies are normally received by the tuned relavs E at the other end. Where a number of lines in parallel are to be protected, tuned high-frequency chokes are inserted in the ends of the line to prevent the high-frequencies from passing to the neighbouring bus-bars and so to the receivers through other parallel lines. In the case of parallel feeders, a single transmitter of high frequencies may serve for all the lines. In a three-phase system three different transmitting frequencies are provided for the three possible combinations in pairs of the three phases.
Patent GB-257589-A (GB)
Title: Improvements in solid injection internal combustion engines
IPC: F02M61/14
Filed: 1926-08-11
Abstract: 257,589. Grayson Engine Co., Ltd., (Assignees of Grayson, G. W.). Aug. 28, 1925, [Convention date]. Cylinders receiving liquid fuel. - A spring- pressed valve 9 of a fuel-injection nozzle is cupshaped and presents an annular seating surface, which bears against a similar surface at the end of the nozzle between which and the. valve member is placed a fluted spraying disc 15. The nozzle projects into a spherical or other combustion chamber so that the issuing fuel can be sprayed at the centre of the chamber. The fuel is ignited by the heat of compression of the cylinder charge.
Patent GB-892445-A (GB)
Title: Improvements in or relating to the doping of silicon
IPC: C30B13/10
Filed: 1959-06-10
Abstract: 892,445. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. June 10, 1959 [June 14, 1958], No. 19902/59. Class 37. A silicon rod is doped by firing glass which contains the doping material to surface and then subjecting it to a zone melting process. In one example, a mono-crystalline P-type silicon rod has a filament of boron-containing soft glass attached to it at one end, both ends or along its length by water glass. The glass is then fused with the silicon in an oven at about 1000‹ C. for about an hour. The rod is then subjected to the crucible-free melting zone melting process, if desired a number of times, so that the boron penetrates the crystal lattice and the rest of the glass evaporates. For N doping a boron-free glass containing phosphorous compounds may be used. It may be necessary to make the melting zone travel backwards and forwards in order that the distribution may be uniform along the rod.
Patent GB-583294-A (GB)
Title: Improvements in or relating to ordnance
IPC: F41A25/12
Filed: 1944-10-16
Abstract: 583,294. Ordnance mountings. RUAU, F. F., and MOLINS MACHINE CO., Ltd. Oct. 16, 1944, No. 20002. [Class 92 (i)] A device for assisting the recoil spring or equivalent device of a gun during the runout comprises an auxiliary spring 13 which is loaded as the gun recoils and which is held loaded during a part of the runout by a cocking device, such as a plate 4, and is subsequently released, to provide the additional force for effecting the run out. In the construction shown, the spring 13 surrounds a rod 12, the lower end of which slides in a bush 18 supported by pins 14 which are journalled in half-bearings 15 carried by plates 7, the latter being fixed to the gun cradle 6. The upper end of rod 12 has a boss which receives a pin 11 of a lever 9 pivoted to the plates 7. Lever 9 carries a roller 10 so positioned as to be engaged by the vertical end face 5 of a plate 4 fitted to the gun barrel 2. In operation, the end face 5 engages roller 10 when the barrel recoils and thereby turns lever 9 about its pivot 8 to compress spring 13, and the spring is held in this loaded position by the plate during the remainder of the recoil movement and also during the runout until the face 5 is clear of the roller 10. Thereafter the energy stored in spring 13 is available to assist in the running out of the barrel.
Patent GB-453304-A (GB)
Title: Improvements in and relating to pottery and like kilns
IPC: F27B17/00
Filed: 1935-07-15
Abstract: 453,304. Kiln fireplaces. McKEAN, J. G., Westerhill, Mount Vernon, and JONES, R. F., 239, Auldhouse Road, Newlands, Glasgow, both in Lanarkshire. July 15, 1935, No. 20131. [Class 51 (i)] A pottery &c. kiln is fired by an underfeed mechanical stoker, the fire-pot 3 of which is located in an open-topped combustion chamber 2 within the kiln so that the heating-flame travels upwards. The fuel and air supply conduits extend through and are sealed in the wall of the kiln, and an ash-cleaning opening 10 is provided on a level with the dead-plate 9 surrounding the fire-pot. A number of combustion chambers mav be spaced round the periphery of a bee-hive shaped kiln, or along the length of a tunnel kiln, or the fire-pots may be arranged at intervals in the space between a bag wall and the outer wall.
Patent GB-684827-A (GB)
Title: A golf practice device
IPC: A63B69/36
Filed: 1951-08-27
Abstract: 684,827. Golf-practising appliances. HORTON, M. Aug. 27, 1951. [Sept. 25, 1950 ; Oct. 4, 1950] No. 20134/51. Class 132 (ii). A substitute golf-ball comprises a hollow resilient cylinder (Fig. 1) having painted parts 11 representing a golf-ball, or as shown in Fig. 2, the cylinder has bulges 10 representing the ball. The cylinder need not be cylindrical in the strict geometrical sense. One or each end may be closed by a thin membrane. As shown in Fig. 4, the cylindrical part 12 is closed by a ball part 13 of more than a hemisphere. The face of the part 13 within the part 12 may be convex or concave and may have an additional depression 14. The parts 12, 13 are differently coloured. The weight of all embodiments is of the same order as that of a standard golf-ball.
Patent GB-569362-A (GB)
Title: Improvements in garment supports
IPC: A47G25/28
Filed: 1943-12-02
Abstract: 569,362. Garment hangers. TRIGGS, W. W. (Midwest Manufacturing & Engineering Corporation). Dec. 2, 1943, No. 20170. [Class 52 (v)] The ends of the yoke of a garment-hanger are inwardly and upwardly turned and shaped to provide supports 22 and pins 18 on which a cross-bar 24 is carried. An additional bar 30 may be provided to secure garments hung on the bar 24. The arms of the yoke are preferably resilient and are sprung inwardly when the cross-bar is attached.
Patent GB-335931-A (GB)
Title: Method of and apparatus for taking measured quantities of plastic glass
IPC: C03B7/22
Filed: 1929-07-02
Abstract: 335,931. Egyes³lt Izz¾lampa Ús Villamossßgi RÚszvÚnytarsasßg, and Levai, J. July 2, 1929. Glass furnaces.-Charges of Vitrite used in the caps of incandescent electric lamps are delivered by a feeding-device 11 on to a hearth 2 which rotates within a furnace 1, and are melted by a burner 12.
Patent GB-1470833-A (GB)
Title: Game board structure
IPC: A63D13/00
Filed: 1974-05-08
Abstract: 1470833 Releasable fastenings ARCO FALC Srl 8 May 1974 [30 Oct 1973] 20322/74 Heading E2B [Also in Division A6] In a game apparatus having balls projected over a table, obstacles 4, Fig. 2, have three feet 7, Fig. 4, such that when they have been pushed into holes in the board, they snap into place and cannot be removed. A rod 35, Fig. 12, for operating members to strike the balls has a T-shaped head 36 which irremoveably snaps into place in a recess 37 in a bush-button 32.
Patent GB-637085-A (GB)
Title: Improvements in sheet construction
IPC: E04H4/00
Filed: 1946-07-08
Abstract: 637,085. Strengthening edges of sheet material. LESAVOY, I. L. July 8, 1946, No. 20350. [Class 42 (i)] [Also in Group XIV] A sheet of moulded, pressed or rolled material of plastics or the like comprises a body portion having at least one thickened lateral edge extending along its entire length, and a number of thickened transverse portions dividing the sheet into sections and forming reinforcing strips, certain of them having an indenture running the length of the strips and forming a separation line whereat the sheet may be divided into peripherally reinforced separate sections. The sheet 15, Fig. 1, has one or both of its edges thickened, as at 16, 17, and transverse ribs 19 are provided. Holes 25 having thickened surrounds which may extend partly into the thickened edge portions 16, 17 may be provided near the latter. Certain of the transverse ribs 19 are in contiguous pairs, which may be separated by slitting to provide sections having all the edges reinforced. Such sections may be held together by a clamp 29, which is placed over two edge ribs 20a, 21a, Fig. 11. Alternatively, as in Fig. 8, some of the ribs 35, 36 may be separated by a space 39 and each provided with a series of holes 37, 38 which may be brought into register and laced together as when the intermediate portion 39 is wrapped round a tubular frame.
Patent GB-603587-A (GB)
Title: Improvements in and relating to electric contact devices
IPC: H01H85/20
Filed: 1945-08-08
Abstract: 603,587. Fuse contacts. LEWIS, W. K. Aug. 8, 1945, No. 20358. [Class 38 (i)] [Also in Group XXXVII] A rigid bifurcated wedge-element 3 is forced by a screw 4 against wedges 14 carried by the inturned jaws 13 of the U-shaped spring contacts 12 of a fuse-holder 1, Fig. 4, whereby the contact jaws are cramped into engagement with a fixed contact blade 16 on the base. Alternatively, Fig. 5, the spring contacts may be forced outwardly to engage a female basecontact 25. The fuse may be connected to the contact elements on the holder, Fig. 3 (not shown), or in the case of a fuse having thin blades 18 at each end, Fig. 2, the blades may be cramped into direct engagementwith the base-contact, and the fuse may be secured to the holder by a nut 28 and bolt 26 passing between the blades.
Patent GB-1058292-A (GB)
Title: Improvements to signs
Inventor: PEARCE JOHN HAROLD GEORGE
IPC: G09F7/14
Filed: 1964-05-15
Abstract: 1,058,292. Signs. PEARCE SIGNS Ltd., and J. H. G. PEARCE. July 6, 1965 [May 15, 1964], No. 20360/64. Heading. G5C. In a sign letter substantially as disclosed in Specification 732,142 the light-reflecting bevel is replaced by a multi-faceted, similarly lightreflecting border. The facets are preferably triangular or semicircular in shape and their joining line or area may project from or be recessed within the general level of the facets.
Patent GB-441073-A (GB)
Title: Improvements in permanent ways
IPC: E01B9/68
Filed: 1934-07-11
Abstract: 441,073. Railway rail supports. KAHN, M., 7, Bodinusstrasse, Riehl, Cologne, Germany. July 11, 1934, Nos. 20379, 20380, and 20381. Convention dates, Dec. 12, 1933, March 31, 1934, and April 12, 1934. [Class 104 (ii)] A layer 6 of soft rubber material is arranged between a chair plate 5 and a sleeper 4 and is united to the latter by a layer 7 of a strongly adhesive rubber or rubber resin, such as are described in Specifications 307,056, [Class 70], 348,303, 352,080, and 371,339, [all in Group V]. In another form, the layer 6 is attached to the upper side of the plate 5, and in a third form, a layer is arranged on both sides. Specification 423,923 also is referred to.
Patent GB-677252-A (GB)
Title: Improvements in or relating to conveyor drives for floor trucks
IPC: B61J3/12
Filed: 1949-08-05
Abstract: 677,252. Rope railways. WEBB, CO., J. B. Aug. 5, 1949. [Aug. 14, 1948] No. 20388/49. Class 104 (ii). A conveyer system for propelling a truck 27 7 upon the surface of a floor comprises a driven chain 19 of the known articulated rivetless or Keystone type, supported by trolleys 17 which run on a circuituous track within a trough below the floor level, the truck being provided with swivelled or castered forward wheels 32 and having a retractable driving pin 26 mounted in a tubular housing 30 in a forward position, so that it can be lowered below floor level to engage driving dogs 23 carried by the trolleys 17. The trolleys are mounted on pairs of wheels 20 at the front and rear ends respectively, and the tracks upon which the wheels run are provided, by the lower sides of oppositely directed metal channels 14 which are spaced apart to allow the passage of the trolley between them. A pair of guide rollers 21 mounted on vertical axes in the trolley bear against the lower edges 22 of the track channels to provide stability during the rounding of curves in the track, and a tongue or member 18 extending downwardly from the trolley is engaged within a link 19 of the driving chain. The dogs 23 are pivoted on the front and rear ends of the trolley 17 and provided with counterweights 25 so that they swing to engage the driving pin 26 when their relative approach to the pin is in either direction of the track. The vertical pin 26 is raised or lowered by means of a pin or handle 28 extending laterally from it through a vertical slot in the housing 30, the pin 28 being retained in the upper position by seating it in a recess 31 in the upper end of the housing. Specification 608,181 is referred to.
Patent GB-351750-A (GB)
Title: Improvements in and relating to automatic protective means for the engine of vehicles having a diesel-electric or the like drive
IPC: B60L50/11
Filed: 1930-07-07
Abstract: 351,750. Dynamos and motors combined for transmitting power. AKT.- GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. July 7, 1930, No. 20501. Convention date, Aug. 3, 1929. [Class 38 (iv).] Regulation, automatic.-A vehicle drive comprising an internal-combustion engine (in particular a Diesel engine) and a main generator excited by a constant voltage obtained from an auxiliary generator, and controlled by speed regulation of the prime mover and by a resistance in the field circuit of the main generator, has additional means controlling the field resistance in dependence upon the armature current only of the generator. Overloading of the engine may thus be prevented. Associated indicating means may assist the driver in correctly adjusting the field in relation to the speed-setting of the prime mover. As shown in Fig. 1, relays p, each responsive to a different generator current, interrupt the circuits of field resistance contactors q, which otherwise are under the control of a drum s so that the driver cannot increase the excitation above that appropriate to a given generator current. Indicator lamps may be associated with the drum s and auxiliary contacts on the relays p to show when the generator is fully loaded. The driver may be permitted to increase the excitation to an overloading extent when the prime mover is set to full speed by means of a pushbutton rendered inoperative in other controller positions by a contact member on the controller. In the modification according to Fig. 2, the field resistance controller s is driven by a fluidpressure servomotor u, the valves 1, 2 of which are operated by auxiliary currents through contacts of relays 3, 4 so arranged that with both contacts open the controller is advanced and the field strengthened, with that of relay 3 open, the controller is held stationary, and with the contacts of both relays open the field is reduced. These relays respond to definite values of the generator armature current, relay 3 lifting at a somewhat lower current than relav 4. The controller is driven to defined positions corresponding to the various resistance steps by means of auxiliary windings on the relays which carry different currents in different controller positions as determined by an auxiliary drum w and resistances x. The speed controller b, exciter field rheostat and a generator field switch b are all operated by a hand-wheel k, and in the lowest speed position an auxiliary resistance r<1> is inserted in the generator field for shunting operations. Additional field resistance steps may be controlled by the hand-wheel k, to provide subsidiary driving positions. The generator field control may work in dependence on the setting of the speed control for instance by means of additional resistances in circuit with the relays 3, 4 which are short-circuited at low-speed settings.
Patent GB-827300-A (GB)
Title: Improved optical glass
IPC: C03C3/068
Filed: 1956-07-02
Abstract: 827,300. Glass compositions. KODAK Ltd. July 2, 1956 [July 1, 1955], No. 20505/56. Class 56. An optical glass is made by fusing a batch comprising in percentages by weight :- the total fluorides constituting 10-10%, up to 2% of Al may be introduced and small amounts of compatible materials such as CaF 2 . Two examples are given. The glass is more than usually resistant to stain and etching. Specification 649,514 is referred to.
Patent GB-317201-A (GB)
Title: Improvements in or relating to electric coupling devices
IPC: H02G3/08
Filed: 1928-07-16
Abstract: 317,201. General Electric Co., Ltd., and Cron, H. W. July 16, 1928. Fittings for installation connections; binding- posts and terminals.-A coupling device comprising a base and cover 1, 2 is provided with thin walls 23, 24 which can be broken away for the passage of conductors, the space between the walls being then filled with an insulating compound. Recesses 21 with thin walls may be formed in pairs close to one another but separated by an insulating partition. The base 1 is also provided with a groove 25 which may be filled with plastic material. The cover is secured to the base by means of a screw 6 moulded in the latter and engaging in a screwed sleeve moulded in a boss 4 on the cover. The base and cover have conical engaging surfaces 19. The screw 6 is slotted longitudinally and carries a nut 9 to enable it to be used as an earthing terminal. The terminals comprise slotted hollow stems 12 moulded in the base and receiving longitudinal screws having insulating heads 15 extended at 16 to form protective skirts round the stems 12. The cover may be secured to the base by the means described in Specification 313,025, [Class 38 (v), Electric switches &c.].
Patent GB-395517-A (GB)
Title: Process for cleaning fibrous materials, textiles, articles of clothing and the like
IPC: D06L1/02
Filed: 1932-07-21
Abstract: Clothing, textiles, and fibrous materials are dry-cleaned in a closed apparatus with perchlorethylene or with a non-aqueous liquid solvent containing perchlorethylene as its main ingredient. Residual solvent is removed by heated air, preferably under reduced pressure.  The perchlorethylene is recovered from the extract by distillation with steam.  Specification 364,423, and the prior use of perchlorethylene for degreasing skins or hides p  are referred to.