baber/WOPTO huggingface dataset:
Patent GB-306148-A (GB)
Title: Improvements in power hammers
IPC: B25D11/12
Filed: 1929-02-15
Abstract: 306,148. Chicago Pneumatic Tool Co., (Assignees of Coates, C. B.). Feb. 16, 1928, [Convention date]. Percussive tools.-In a percussive drill in which the power from an attached electric motor is transmitted to the tool through a self-contained air compressor, the piston 4 is contained in the cylinder 3 on the outside of which moves the sleeve 5 driven by the. electric motor 18 through the gearing 16, 15, and the crank 12. The space 6 between the upper end of the sleeve 5 and the cylinder 3 is filled with air through port 5<b> when the sleeve 5 is at the top of its stroke. This air is compressed as the sleeve descends, and the piston is thus forced rapidly outward, till at the completion of the stroke the air is discharged through the ports 3<b> and 5<c>. The piston makes its return stroke due to the suction caused by the sleeve 5 on its return stroke. The motor casing 19 is attached to the tool by a plate 20 which facilitates the withdrawal of the crank 12 from its bearings 13, 14 when desired. The sleeve 5 is lubricated by a pad soaked in oil and situated in the groove 23. A counter balance weight 17 may be fitted to the crank shaft.
Patent GB-268311-A (GB)
Title: Improvements in water tube boiler furnaces
IPC: F23M5/08
Filed: 1927-02-23
Abstract: 268,311. International Combustion Engineering Corporation, (Assignees of Brunt, J. van.). March 26, 1926, [Convention date]. Pulverulent-fuel furnaces. - The combustion chamber water-tube system of a water-tube boiler fired by finely subdivided fuel consists of front and rear walls E, F of finned tubes 15, 12 side walls G of finned tubes 17, and screens H, I. of spaced tubes 20, 21, at the top and bottom of the chamber. Circulation proceeds from drum 5, through downcomers 22 at each end, to a lower drum 14, and thence upwardly through all the wall water-tubes and the screen tubes H, I, to headers 8, or through headers 19, 18, to the header 11. A modified downcomer connection consists of a number of small diameter pipes. Burner nozzles are placed at the four corners of the chamber to produce violent combustion, air being supplied through a conduit 25 from a heater in the offtake 24, which in a modification is placed directly beneath the drum 5.
Patent GB-773827-A (GB)
Title: Improvements in motor driven pumps
IPC: F04D13/06
Filed: 1955-02-21
Abstract: 773,827. Centrifugal pumps. CHEMPUMP CORPORATION. Feb. 21, 1955 [April 16, 1954], No. 5162/55. Class 110 (1). [Also in Group XXXV] A motor-driven pump comprises a pair of spaced pump housings 10, 10a with a motor housing 40 extending between and secured to them, preferably by welding, and a cylindrical sleeve 43 spaced inwardly from the housing 40 to form separate chambers for the motor rotor 51 and motor stator 47, the motor shaft 50 carrying impellers 55a, 55b and being journalled in bearings 35, which may be of carbon, carried by the housings 10, 10a. The sleeve 43, which is preferably of stainless steel or other non- magnetic and non-corrosive material, is welded at each end to an annular disc 19 and is interposed between the latter and an adjacent projection on a disc 22 which carries one of the bearings 35. The discs 19 are attached by bolts 20 to the housings 10, 10a and the discs 22 are secured in annular recesses 23. Sealing rings 26 are provided. The rotor 51 may have a corrosion-resistant cover 52. The housings 10, 10a, the discs 22 and the piping may be of stainless steel or bronze, and the discs 19 are preferably of stainless steel. The impellers 55a, 55b operate in series, the high-pressure impeller 55b being of smaller diameter than the lowpressure impeller 55a to balance the axial thrusts of the impellers. Thrust bearings 53 are provided. The difference of pressure between the two stages of the pump causes circulation of fluid through ports 36, to an extent controlled by a restriction 37, to cool the motor. The impellers may alternatively be of equal size and connected in parallel, in which case the circulation of fluid through the ports 36 is produced by a slight difference, resulting from manufacturing tolerances, between the discharge pressures of the two impellers; if necessary, the impellers are selected to ensure this pressure differential or one of them is modified slightly.
Patent GB-124072-A (GB)
Title: Improvements in or relating to Mineral Oil Mixtures for use as Fuel in Internal Combustion Engines.
Inventor: CARPER JOSEPH BURMAN
IPC: C10L1/04
Filed: 1918-03-23
Abstract: 124,072. Carper, J. B., and Tulloch, T. G. March 23, 1918. Oils for burning; fats, extracting.-A mineral oil mixture for use as a solvent for animal fats is obtained by mixing light shale oil, of specific gravity 0.7 or less, with heavier coal-tar oils, of specific gravity 0.8 to 0.95, washing the mixture successively with sulphuric acid, caustic soda, and water, and then obtaining distillates from the mixture up to temperatures of from 165 to 200‹ C., according to the required use. According to one of the Provisional Specifications, the product distilled off up to about 180‹ C. may be used as fuel in internal-combustion engines.
Patent GB-305829-A (GB)
Title: Improvements in or relating to hydraulic pump mechanisms
IPC: F04B49/02
Filed: 1928-02-20
Abstract: 305,829. Tonks, G. Feb. 20, 1928. Eccentric and lever-actuated pumps; stroke, varying.-The plungers 14 of a pump are actuated by eccentric rods 9 and links 10 containing curved slots which are slidably engaged by a cross-pin on the plunger rod 12. The links 10 are pivoted on levers 16, which are pivoted at one end on the driving shaft 6 and at the other end are held down by an adjustable spring 19. The levers 16 are connected by rods 22 to a ram 23a provided with a small shoulder 23<c> exposed to the delivery pressure of the pump. If this pressure varies, the levers 16 are moved by the ram, thus displacing the links 10 and varying the stroke of the plungers. Specification 308,434 is referred to
Patent GB-686185-A (GB)
Title: Improvements in and relating to rotary boring machines
IPC: E21B6/00
Filed: 1950-03-02
Abstract: 686,185. Percussive drills. MEUTSCH, A. March 2, 1950 [Oct. 1, 1948], No. 5294/50. Class 124. [Also in Group XXII] A rotary rock drill is provided with a rotary motor for rotating a drill bit and a percussion motor having a reciprocating piston for producing an oscillating pressure on the drill bit, the percussion motor being independent of the rotary motor and arranged to operate at high speed with a short stroke. As shown a rotary motor 1 has an extension 9 of a drill bit passing through it into a cylinder 11 in which a piston 12 reciprocates at more than 2,000 oscillations per minute and with a stroke of 10-20 mms., striking the bit and forcing it against the rock being drilled. A rubber or like resilient buffer 12a may damp the blows. In a modification, Fig. 2 (not shown), the piston has an extension entering the rotary motor and striking the bit which has a shorter extension than that of Fig. 1. In a further modification, Fig. 4 (not shown), a buffer piston may be inserted between the percussive piston and the bit. Fig. 3 (not shown), illustrates a modification in which the piston strikes the casing of the rotary drill. Fig. 5 shows a modification in which the rotary motor 1 rotates a long boring bar at the other end of which is the percussive motor 11.
Patent GB-1179781-A (GB)
Title: Telephone Exchange System with Automatic Operation over a Carrier-Frequency Section
IPC: H04M7/16
Filed: 1967-02-03
Abstract: 1,179,781. Automatic exchange systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 3 Feb., 1967 [4 Feb., 1966], No. 5342/67. Heading H4K. Sub-stations seize an exchange circuit over a carrier-frequency link by an in-band frequency pulse and send dialled digits as trains of outband frequency pulses. Sub-stations are rung in response to an out-band frequency ringing signal from the exchange. A carrier frequency link TF between a sub-station T and exchange A terminates in go and return out-band signal paths S2 and a two-way speech path F2 which is connected to the sub-station over a feedbridge 3. Line current through the bridge is monitored by a device 4. In response to a 3À85 kc/s. signal from 1, ringing voltage is supplied to the sub-station T over contact r. Closure of the line loop in reply switches monostable device 5 after a 150 ms. delay during which AND gate 6 opens to effect transmission of a 2À85 kc/s. in-band pulse over F2. An exchange receiver 7 responds and switches bistable device 10 over its input E1; AND gate 11 opens to operate relay S which extends the subscriber's line over S1 and S2. Device 4 follows dialling impulses and repeatedly opens AND gate 9 to transmit trains of 3À85 kc/s. out-band pulses, each pulse opening AND gate 11 and releasing relay S which thereby repeats the dialling impulses at S1. Upon the calling subscriber T hanging up monostable device 5 switches back after a delay of 800 ms.; the consequent 800 ms. 3À85 kc/s. pulse switches bi-stable device 10 to release relay S.
Patent GB-852826-A (GB)
Title: Improvements in the manufacture of hollow blades for fluid flow machines
IPC: B23P15/04
Filed: 1957-02-18
Abstract: 852,826. Making turbine and like blades; bonding; stamping; soldering. STALKER, E. A. Feb. 18, 1957, No. 5427/57. Classes 83 (2) and 83 (4). A hollow turbine or like blade comprising. upper and lower sheet metal parts 80, 96, Fig. 15, secured together along leading and trailing edges 98, 99, is made by joining the parts each with an integral nose-piece 95, 97, bringing the nose-pieces into registry and holding them so as to define the desired blade section rearwardly of the nose-pieces, securing the parts together by a metal fusion process such as soldering or brazing, at or adjacent the nose-pieces and then removing the nosepieces. In one embodiment the two parts are pressed from separate sheets; each part is then placed in a die 90, Fig. 14, where the leading end portion 93 is bent and reduced in thickness by a moving die 94 to form the nosepiece. The two parts are then tack welded together at 98, 99, solder wires 100, 101 are inserted at the junctions, the assembled parts are inserted in a rack 54 and passed through a furnace which forms a soldered joint. The leading and trailing edges are then trimmed to shape. In another embodiment the two parts 12, 14, Fig. 6, are formed from a single sheet with a common integral junction-piece 24, Fig. 3 (not shown), whichis drawn between dies 30, 32 to form a recess with side wall 16c, 16d. The junction may be reduced in thickness 28, Fig. 4 (not shown), before drawing. The side walls 16c, 16d are later squeezed together between dies 40, 41, Fig. 7 (not shown), to provide a junction which may be tack welded; the two parts are also tack-welded together at their trailing edge. The assembly is then soldered or brazed as in the first embodiment and the edges are subsequently trimmed and finished.
Patent GB-884195-A (GB)
Title: Method of and apparatus for forming and covering fibrous pads
IPC: B02C13/26
Filed: 1958-02-19
Abstract: 884,195. Production of fibrous pads. JOA, C. G. Feb. 18, 1959 [Feb. 19, 1958], No. 5438/58. Drawings to Specification. Class 96. The particular description in the present Specification is the same as that in Specification 884,196, but the claims concern the severing of the batt strips to form pad portions. Specifications 884,191, 884,193, 884,194 and 884,197 also are referred to.
Patent GB-586571-A (GB)
Title: Improvements in fluid jet nozzles, more particularly for internal combustion power acting wholly or in part by jet propulsion
IPC: F02K1/11
Filed: 1943-04-05
Abstract: 586,571. Jet propulsion plant. HALL, J. S., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 5, 1943, No. 5448. [Class 110 (iii)] [Also in Group XXXIII] A fluid ejection nozzle or duct tube for directing the exhaust gases of an internal-combustion engine into a reaction jet for aircraft propulsion, comprises a fixed part 1 carrying a pair of diametrically complementary half tubes or cones 6 which open to increase the cross-sectional area of the jet or duct, the triangular gaps so formed being covered by fixed fingers 11 having inner surfaces in contact with the half cones or tubes and shaped as surfaces of revolution generated about the hinge axis 5. The half tubes or cones 6 may comprise relatively eccentric inner and outer skins 7, 8 united by a frame 9, whilst the fixed fingers 11 also may be of double-skin structure. The area of seal between the half tubes or cones 6 and the fixed fingers 11 may be increased by means of conical strips 10 attached to the outer edges of the half tubes or cones. These strips 10 may be castings or other solid metal and have thin mating edges 10a. The mutually fitting surfaces 7a, 1a of the half tubes or cones 6 and the fixed part 1 are formed as parts of spheres generated about the common axis 5 of the hinge pins 13. The parts 1, 6, 10, 11, are all enclosed in an outer shell 2, which may be elliptical in cross-section and joined to the fixed part 1 by annular channel members 3. The fixed fingers may be strengthened, and secured to the fixed part 1 by means of longitudinal girders. The inner skins of the fixed fingers 11 engage in slots 14b in the circular front edges 14a of the hinge bosses 14. Each half tube or cone 6 carries an arm 18 which is operated scissor-fashion by a member 22 driven by a servomotor. Specification 586,551 is referred to.
Patent GB-1383633-A (GB)
Title: Liquid treatment of textiles
IPC: D06P1/92
Filed: 1973-02-05
Abstract: 1383633 Solvent treatment of fabrics BRUCKNER APPARATEBAU GmbH 5 Feb 1973 [21 Feb 1972] 5517/73 Heading DIP Organic solvents used to apply finishes, e.g. dyes, to textiles are removed from the textiles by vaporisation and are then catalytically oxidised to carbon dioxide and water, aptionally after prior enrichment by condensation or absorption. The solvent may be a hydrocarbon, alcohol, ester, ether, ketone, aldehyde or organic acid. Water may be present with the solvent.
Patent GB-163798-A (GB)
Title: Improvements relating to motor vehicles particularly motor scooters
IPC: B62K11/04
Filed: 1920-02-24
Abstract: 163,798. Shaw, F. J. Feb. 24, 1920. No Patent granted (Sealing fee not paid). Tubular constructions.-A motorscooter frame, arranged to carry the oil and petrol tank and the engine, comprises a pair of parallel crossconnected tubes D crossing in elevation, at H, a second pair of similarly extending cross-connected tubes B, adjacent tubes of the pairs being connected by struts G and both pairs being secured to the steering-head.
Patent GB-118808-A (GB)
Title: Improvements in Cooling Devices for Machine Guns.
Inventor: JONES SYDNEY
IPC: F41A13/10
Filed: 1918-04-03
Abstract: 118,808. Jones, S. April 3, 1918. Machine guns; flash of discharge, obscuring. - Relates to cooling-devices of the kind in which the waste explosion gases drive a turbine or the like attached to the gun muzzle to induce a current of air through a casing enclosing the barrel. The invention consists in a muzzle attachment comprises a helically slotted tube which a fan with helical blades is revolubly mounted. The device serves also to screen the flame of discharge. Fig. 1 shows a fan with three helical blades d, e, f connected to a sleeve g rotating on ball bearings on a member a screwed to the gun muzzle and retained in placed by a nut i fixed by a screw k. Helical slots c, of increasing pitch, formed in the member a direct and spread the gases on to the blades of the fan.
Patent GB-346519-A (GB)
Title: Device for fastening the studs of stud and socket fastenings or other bodies, provided with a cavity, to fabrics, leather or the like
IPC: A44B17/00
Filed: 1930-02-20
Abstract: 346,519. Snap fasteners &c. WITTE, O., 39, Chemnitzerstrasse, Leisnig, Saxony, Germany. Feb. 20, 1930, No. 5739. [Class 43.] A device for fixing the studs of snap fastenings or other hollow bodies to fabrics consists of a rivet member formed from a plate bent into a cylinder c. The head is formed from two plates d, e which grip the base b of the cylinder between them. The spikes i of the rivet pierce the material and are coiled up inside the stud g to fill it.
Patent GB-879754-A (GB)
Title: Seals and method of producing mating sealing surfaces
IPC: B24B19/00
Filed: 1960-02-18
Abstract: 879,754. Lapping seal rings. CATERPILLAR TRACTOR CO. Feb. 18, 1960 [Dec. 14, 1959], No. 5745/60. Class 60. [Also in Group XXVI] A seal ring 46, which may be of "Stellite" (Registered Trade Mark), for a mechanical seal (see Group XXVI) is first lapped to form a relieved portion 54 and a flat radial band. The ring is then held in a rotatable chuck 48 by an elastic material torus 52, identical to that to be used in service, and lapped under substantially the same axial pressure to which it will be subjected in use, for example 100 pounds, on an annnular internal frustoconical surface 44 of a circular table 40 freely rotatable on a spindle 42. This results in an external frusto-conical surface, Fig. 10, which, when the axial pressure is relieved from the ring, forms an internal frusto-conical sealing band 36, Fig. 11.
Patent GB-159204-A (GB)
Title: Improvements in rotary apparatus for expressing liquid from fibrous substances, such as mechanical pulp or cellulose
IPC: B30B9/20
Filed: 1921-02-19
Abstract: 159,204. AktieboIaget Karlstads Mekaniska Verkstad. Feb. 25, 1920, [Convention date]. IVet presses.-In pressing-apparatus for removing liquid from between the pairs of rolls used in pressing out fibrous substances such as cellulose and wood pulp, one or both of each pair of cylinders, as in the couch press 4, the first press 7 and the second press 14, are provided with circumferential grooves in which the water collects, and with suction means 5, 9, 17 to remove the water so collected. Felts 6, 10 may be used to protect the material in the couch press and first press. Scrapers or stops may be used in the grooves to improve the suction. Fig. 4 shows the arrangement applied to the upper roll 27 of a pulp vat. An arrangement wherein the material passes upwards between the pressing-rolls is also described.
Patent GB-749445-A (GB)
Title: Improvements relating to cast in situ concrete piles
IPC: E02D5/36
Filed: 1953-03-02
Abstract: 749,445. Piles. SOIL MECHANICS, Ltd., and LEONARD, M. W. May 25, 1954 [March 2, 1953], No. 5774/53. Class 68(2) In making a cast-insitu concrete pile of the type in which a borehole is excavated and subsequently filled with concrete, a rigid shoe 2 is lowered to the bottom of the borehole and driven into the stratum at the bottom thereof before the concrete is poured into the borehole on top of the shoe. The shoe may have a boss 6 around which a sealing ring 7 is placed.. A bell 4 having a quick release mechanism at its lower end is fitted over the boss 6 and a monkey 3 within the bell drives home the shoe. The bond 8 for monkey 3 passes through a gland 9 in the top of the bell which latter has a non-return valve and both monkey and bell may have weights 10 on top. In a modification the shoe has a recess in its top into which the end of a tremie is fitted, the treinie acting as a dolly whilst the shoe is forced into the ground. If the borehole is inundated, a peripheral recess may be provided in the shoe into which a sealing ring is placed. According to the Provisional Specification, the shoe may be formed with a projecting boss around which the sealing ring is fitted.
Patent GB-217537-A (GB)
Title: Improvements in storage containers for volatile liquids
IPC: B65D23/04
Filed: 1924-03-06
Abstract: 217,537. Peters & Co., Ltd., G. D., and Riley, A. C. March 6, 1924. Stationary batch-mixers with reciprocating stirrers.-A storage container for volatile liquids that require agitating prior to withdrawal comprises a tank 1 fitted with a withdrawal cock 3, and an inlet 4 having an airtight stopper 5, the agitation being effected by a perforated plate 9 operated by a stem 10 passing through a gland 14.
Patent GB-1023268-A (GB)
Title: Improvements in or relating to safety helmets
Inventor: BALL JAMES EDWIN
IPC: A42B3/14
Filed: 1965-02-10
Abstract: 1,023,268. Helmets. W. W. BALL & SONS Ltd. Feb. 10, 1965, No. 5795/65. Heading A3V. A safety helmet comprises a shell, a head receiving cradle secured directly to the shell and at least one shock absorbing webbing connected to the shell through the intermediary of resilient means. The straps 13 of the cradle are moulded integrally with the headband 14 and are releasably secured to the shell by plastics strips 18 the ends of which being shaped to fit into recesses provided in the shell. Two webbings 9, 10 of reinforced plastics material have looped ends fitted with a resilient washer 11 which is apertured for screwing the webbings to the shell. The ajustable headband 14 has a series of apertures 21 at one end for selectively engaging studs on the other end and loops 22 for the passage of a resilient strip 23.
Patent GB-557076-A (GB)
Title: Improvements in or relating to envelopes such as are employed for electron discharge devices
IPC: H01J5/26
Filed: 1942-04-30
Abstract: 557,076. Glass/metal seals. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 30, 1942, No. 5816. Convention date, April 30, 1941. [Class 36] [Also in Groups XL and XXIII] To prevent stripping of the seal in envelopes such as those used in electron discharge devices, the metal tubing 1 is provided with a reinforcing band 6a, 6b, or 6c, at the joint with the glass disc 2 forming the header which closes the envelope. The coefficient of thermal expansion of the lead glass is lower than that of the iron or steel body 1 ; this in one form has a coating of nickel and a ring of enamel is applied where the glass is to be sealed, the enamel composition being 72 per cent PbO, 14 per cent B 2 O 3  and 14 per cent SiO 2  with a thermal coefficient of expansion of 8.7 X 10<SP>-6</SP>.
Patent GB-972990-A (GB)
Title: Improvements relating to aircraft flight-control apparatus
Inventor: POWLEY MALLINSON
IPC: G01S13/935
Filed: 1958-02-22
Abstract: 972,990. Pulse radar. FERRANTI Ltd. Feb. 18, 1959 [Feb. 22, 1958], No. 5816/58. Heading H4D. A flight path indicator, carried in a profile flying aircraft, presents a visibie indication to the pilot of the deviation of the craft from a datum height. An optical image moves relative to the fixed datum in correspondence with the craft deviation from the desired height. As shown, the pulse radar 11 derives a signal which varies with the deviation from the required altitude and which is applied to the coil 28 of the magnetic circuit 27. The latter deflects the rotational axis of the gyro rotor 21 about the Hooke's joint 25 and the image of graticule 35 reflected in mirrors 31, 32 is moved across the line of vision through the fixed datum 57. The antenna 11 is at a fixed angle # to the flight line 13 and the height is derived from measurement of the range d. In an alternative form (not shown), the angle # is adjustable to give a constant range d, the height being a function of #. Specification 815,729 is referred to.