baber/WOPTO huggingface dataset:
Patent GB-655855-A (GB)
Title: Improvements in or relating to loudspeakers
IPC: H04R9/06
Filed: 1948-07-09
Abstract: 655,855. Loudspeakers. REPRODUCERS & AMPLIFIERS, Ltd., and FALKUS, A. E. July 9, 1948, No. 18545. [Class 40 (iv)] In a cone type moving-coil loud-speaker, flexible leads 17 from the external circuit are anchored to the conical diaphragm by threading them through holes 19 and back through holes 21 and the ends 12 and 13 (not shown) of the operating coil are connected directly to the part 23 of the leads between the holes. Minimum slackness of the leads consistent with free movement of the diaphragm is achieved by arranging the lead 17 substantially at rightangles to the axis of the cone.
Patent GB-121352-A (GB)
Title: A New or Improved Method of Trapping the Ends of Metal Tubes.
IPC: F16C7/08
Filed: 1917-12-14
Abstract: 121,352. Rudge-Whitworth, Ltd., and Pugh, J. V. Dec. 14, 1917. Tubes. - Metal tubes are trapped or closed at the ends, particularly for forming connexions in tubular structures, so that the closed end is not greater than the original diameter of the tube. The tube end is compressed at a, Fig. 1, to figure of eight form, and is then flattened by pressure at b to the form shown in Fig. 3. Modifications are described in which the closed ends are of flattened U-, S-, and other form. A modification is described wherein the tube is cut at a before flattening so that two flattened portions c, d, Fig. 2, are formed. A tubular liner may, if desired, be inserted in the end of the tube before the trapping process is performed. The tube-end may be brought to the form of a square with rounded corners as a preliminary step to forming the figure of eight, and circular rods may be inserted to preserve the internal form during compression at a,
Patent GB-409925-A (GB)
Title: Improvements in or relating to portable drilling and like rotary machines
IPC: H01H9/06
Filed: 1933-07-01
Abstract: 409,925. Drilling-machines. CROFTON & CO. (ENGINEERS), Ltd., C., and CROFTON, H. B., 11, Marden Road South, Whitley Bay, Northumberland. July 1, 1933, No. 18743. [Class 83 (iii).] In a portable drilling-machine of the kind in which a motor drives the drill through an epicyclic reduction train of one or more reductions, the annuli and bearings are spaced apart by removable distance pieces within the gear casing, the whole being held together by a single fixing means such as a ring nut abutting on the outer bearing. The machine, as applied to a coal drill, comprises a casing 9 carrying an electric motor 18 and a casing 1 carrying the driving gears. A pinion 7 on the end of the motor shaft 8 drives two planet pinions 10 carried by a spider 12 and meshing with a stationary internally toothed gear formed in a sleeve 11. A pinion 14 on the spider 12 drives four planet pinions 15 carried by a spider 5 and meshing with a second internal gear on the sleeve 11. The tool socket 2 is screwed at 4 to the spider 5 and is mounted in bearings 3, 6 in the casing 1. Distance pieces 31, 32 are placed between the sleeve 11 and bearings, the whole assemblage being held together against a shoulder 1<a> in the casing 1 by a flanged nut 33 screwing on the outer end of the casing. A similar nut 17 screws on the motor casing 9 to secure the casing 1 therein by means of a flange 1<b>. The motor 18 is preferably a high frequency, high speed motor, e.g. a three phase squirrel cage motor running at 9,000 r.p.m. supplied with power at 150 cycles by means of a frequency changer external to the machine. An insulated block 24, carries the leads to the motor and forms the socket of a plug and socket connection. A switch 25 for the motor is operated by a plunger which is pressed, against the action of a spring, by a trigger in one of the handles 16 formed on the motor casing 9.
Patent GB-795761-A (GB)
Title: Improvements in or relating to power-operated hoists
Inventor: LUNN RICHARD TURNER
IPC: B66B9/16
Filed: 1956-06-18
Abstract: 795,761. Builders' hoists; skips. A.C.E. MACHINERY, Ltd. Feb. 26, 1957 [June 18, 1956], No. 18812/56. Classes 78 (3) and 78 (4). In a builders' hoist the upper section 6 of the mast is moved about a pivot 7 into the transport position shown by a toggle linkage 9, 14 and a handle 13. In the raised position of section 6, toggle joint 10 is locked by a catch 12 and a pin 8 locks the mast sections together. The lifting carriage 19 is guided on the mast by sliders 20 and is raised and lowered by an engine-driven winch 26. The hoist is provided with catch and end stop gears (not shown). A skip 15 is mounted on the carriage by pivot pins 23, 25 and is provided with a swinging discharge gate 17 and a hinged shoot 18.
Patent GB-852108-A (GB)
Title: Process of nitriding
IPC: C23C8/02
Filed: 1959-06-03
Abstract: A process of nitriding a steel object comprises machining the object to its final dimensions and subjecting it to a surface hardening operation to a depth not less and preferably greater than the desired nitriding depth before carrying out the nitriding operation.  The surface hardening may be performed by induction or flame heating and the nitriding may be in a vacuum furnace in a glow discharge atmosphere.
Patent GB-803524-A (GB)
Title: Improvements in or relating to mechanical servo disc brakes
IPC: F16D65/14
Filed: 1955-06-30
Abstract: 803,524. Disc brakes. SHEEPBRIDGE ENGINEERING Ltd., and BROWN, T. Sept. 28, 1956 [June 30, 1955], No. 18984/55. Class 103 (1). In a mechanical servo disc brake, friction pads 20 and 21 carried by backing plates 22 and 23, respectively, are housed in a fixed hollow casing 15 (Fig. 1) and are adapted to engage frictionally the radially extending sides of a rotatable, axially slidable brake disc 10 and be carried round by the disc for a limited distance; servo means in the form of balls 27, 46 operating in conical or like recesses 24, 26 and 39, 40, respectively, being provided between backing plates 22 and 23 and the sides of fixed hollow casing 15 for imparting additional axial pressure to the pads. Springs 9 are provided to move pads out of frictional contact with the disc 10 when the brake is released. Rotation of shank 30 by operating lever 8 forces balls 7 to ride up the sides of conical recesses 32, 34 imparting movement to member 29 which in its turn imparts movement to the backing plate 22 and friction pads 20. The disc 10 moves axially so as to press it against pads 21. The two pairs of pads tend to rotate with .the disc causing balls 27 and 46 to roll up conical sides of recesses causing further axial movement of the pads and a servo-action results. Adjustment for wear of the pads may be made by rotation of nut 44. In a further embodiment illustrated in Fig. 5, only one friction pad is disposed on opposite sides of the brake disc 10. Actuation of operating cable 63 causes C-shaped lever arm 59 to pivot about pin 58 and force backing plate 22 and associated pad 20 against the axially slidable disc 10 to bring the latter into frictional engagement with pad 21, associated with backing plate 23 mounted on fixed wall 42 of housing. Servo means similar to those described with reference to Fig. 1 are inserted between the limb 25 and plug 55 associated with fixed wall 42 of the housing.
Patent GB-625241-A (GB)
Title: Improvements in liquid spring shock-absorbers
IPC: F16F5/00
Filed: 1947-07-16
Abstract: 625,241. Hydraulic shock-absorbers. DOWTY EQUIPMENT, Ltd., and BINGHAM, A. E. July 16, 1947, No. 19026. [Class 108 (iii)] A telescopic shock-absorber and resilient device comprises a "high pressure " liquid-filled chamber having a plunger with a damping head movable therein and a " low pressure " liquidfilled chamber having a plunger movable therein against the compression of the liquid, the said plungers being adapted to be connected outside the chambers to two relatively movable parts of a vehicle or aircraft suspension system. In the arrangement shown, a casing 11 of a high pressure chamber 12 is screwed into an outer casing 15 forming part of a low pressure chamber 16. The chamber 12 is closed by a gland 18 through which projects a plunger 20 which is adapted to be connected at its outer end to one part of the suspension system and which carries at its inner end a damping head 21 provided with flow restriction passages 22. A plunger 25 which is adapted to be connected at its outer end to the other part of the suspension system projects into the low pressure chamber 16 and carries a head 26 which is provided with resilient pads 27. The end face of the casing 11 may be formed with an annular flange 28 in which liquid is trapped by one of the pads 27 to form a cushion at the inner limit of travel of the plunger 25. Both chambers are completely filled with suitable oils, which may be initially pressurized, and the ratio of the pressures of the respective chambers under maximum load be of the order of 30,000 pounds per square inch to 7,500 pounds per square inch, or more. In operation, small relative movements of the two parts of the suspension system are resisted without damping by the oil in the low pressure chamber 16, while larger relative movements are resisted with damping by the oil in the high pressure chamber 12. The volume of the low pressure chamber 16 may be adjustable in order to counteract the effects of temperature changes on the oil therein, by screwing the casing 11 into or out of the casing 15. Flanges 29 and 30 may be suitably marked as to " high," " medium " and " low " temperature.
Patent GB-1486716-A (GB)
Title: Manufacturing process for processing of rolled sectional steel and an arrangement of apparatus for carrying out the process
IPC: B21B39/00
Filed: 1975-05-08
Abstract: 1486716 Coiling wire rod SCHLOEMANNSIEMAG AG 8 May 1975 [27 May 1974] 19361/75 Heading D1T [Also in Division B3] In a process line stock W is fed from hot rolling mills to a coiler 7 through a guide, the lower part 11a of which can be telescoped over the upper part 11, guided by rollers 12, by means of a pneumatic cylinder 13, 14 for access to a straight end length of wire left for easy insertion into an uncoiler which follows a cooling station. The uncoiler may comprise a driven arbor (25), Figs. 6, 6a from which the coil is suspended. Alternatively, Fig. 5a, the coil is mounted on an expanding mandrel 45 driven by a motor 47 and axially displaceable by a drive 44 to align the strand being unwound with a reverse bender 49.
Patent GB-135900-A (GB)
Title: Improvements in or relating to Apparatus for Raising Liquids by Direct Fluid Pressure.
Inventor: OGDEN JOHN EDWARD LEWIS
IPC: F04F1/06
Filed: 1918-11-26
Abstract: 135,900. Ogden, J. E. L. Nov. 26, 1918. Direct air-pressure apparatus, automatic ; exhaust devices; valves for liquid, arrangement of ; valves for pressure fluid, actuation of; valves for pressure fluid, arrangement of.-Direct air-pressure apparatus for raising acids &c. comprises a closed vessel 2 fed with the liquid by gravity through the pipe 4 and valve 8. A tube 5 in alinement with the inlet valve communicates by a port 11 with the vessel 2, and also with a valve chambar 6 containing the admission valve 7 for the pressure fluid. The valve 7 is carried by a piston 14, which may be attached to a diaphragm 15 closing the chamber 6. While the vessel 2 is filling, the displaced air escapes by a vent 19 into the liquiddischarge pipe, but when the liquid closes the vent 19, the remaining air is compressed in the tube 5 and, by acting on the piston 14, opens the valve 7 slightly so as to admit compressed air from the pipe 13 to the chamber 2. The compressed air completes the opening of the valve and holds it open during discharge of the liquid. The latter movement of the valve takes place against the resistances of a weighted lever 18 or a spring- The liquid-inlet valve 8 is a hollow cylinder open at the bottom to the liquid, and is raised by the entering liquid and closed by the compressed air. The vent 19 has a hood 21 against which the liquid in the discharge pipe impinges and closes the vent. In another form, the liquid enters the chamber 2 through perforations and a disk valve, the discharge pipe is co-axial with the inlet valve, and the pipe connecting the chamber with the valve chamber has a U-bend at the bottom, so that when the liquid reaches the open mouth of the bend, it flows into the pipe and compresses the air therein to open the air valve.
Patent GB-1057335-A (GB)
Title: Transporting equipment for containers
Inventor: GEORGE ROBY DEMPSTER WILLIAM A
IPC: B60P1/64
Filed: 1965-05-07
Abstract: 1,057,335. Transferring freight containers to and from vehicles. DEMPSTER BROTHERS Inc. May 7, 1965, No. 19444/65. Heading B8E. A load container 11, Fig. 1 (not shown), provided with bail members 13 extending between runners 12, is loaded from the ground or from an elevated support on to a tipping frame 4 on a vehicle chassis 1 by means of a carriage 20, Fig. 4, which is movable along the frame 4 by an hydraulic ram 24, Fig. 5 (not shown), and which is provided with a hook bar 15 adapted to engage with the bail members. The hook bar 15 is formed with opposed hooks 16 and is urged upwardly about the pivot 19 by a leaf spring 21.
Patent GB-204682-A (GB)
Title: Improvements in or relating to fluid distributing devices for piston actuated tools, engines or the like
IPC: F01L21/02
Filed: 1923-07-30
Abstract: 204,682. Branda, B. Sept. 30, 1922, [Convention date]. Fluid actuated gears.-A fluid-actuated piston valve for controlling the motion of a piston with definite or indefinite dead points in both directions, or an indefinite dead point in one direction, is provided with four sliding surfaces a - d, Fig. 1, of which the surfaces a, b connect the parts 1, 2 with the inlet 3 or exhaust passages 4, 5, and the ends c, d form auxiliary pistons upon which the main pressure alternately acts through passages 6, 7 to throw the valve when the exhaust pressure upon one or the other of the faces of the heads a, b ceases upon the main piston F, Fig. 2, closing the port 1 or 2. The cylinder E may have separate inlet and exhaust ports. In the construction shown in Fig. 4, the cylinder has separate inlet and outlet ports 12 - 15, the exhaust passages 16, 17 have a common outlet 21. and the heads h, i work in cylinders provided with auxiliary outlets 17, 18, which, should the exhaust pressure before compression on the outer end of either of the heads h, i be insufficient to hold the valve, throttle the exhaust and prevent the complete reversal of the valve until the corresponding exhaust port is closed by the piston M.
Patent GB-1513423-A (GB)
Title: Tdm telecommunications systems
IPC: H04Q11/04
Filed: 1975-05-09
Abstract: 1513423 Synchronizing SIEMENS AG 9 May 1975 [27 May 1974] 19525/75 Heading H4M In the mutual synchronization of pulse train oscillators provided in the modes of a PCM t.d.m. network, extractors S at each node providing to "m" fold dividers ZI-ZL the pulse rates on lines IL, the divider ouputs being fed to bistable triggers KI-KL all of which receive from divider ZO the "m" fold divided train from local oscillator O, the bistable trigger outputs being summed {phase averaging}, and filtered by low pass filter TP to provide an output controlling the local oscillator frequency, the system operating with approximately 180 degree phase shift between the trains provided at the ouputs of divider ZO and ZI-ZL resp. means are provided to reset all dividers ZI-ZL to re-establish the 180 degree phase shift should the output of the low pass filter TP exceed a predetermined threshold, whose value is related to the number of lines I-L, set in unit FG, or one or more of the dividers ZI-ZL are reset to the reference 180 degree phase shift, should an output pulse of the corresponding divider(s) ZI-ZL be provided before the count state of divider ZO has reached r, or after it has reached m-r. The threshold FG functions when its threshold is exceeded to set bistable RN in turn resetting and holding dividers ZI-ZL in their initial state, until a pulse from divider ZO at count m/2 resets the bistable in turn re-enabling dividers ZI-ZL. Bistable RP functions similarly to RN in reestablishing the 180 degree phase shift for divider ZI, should the latter provide an output while AND RU is enabled, i.e. when the content of divider ZO exceeds m-r or is less than r, the AND output setting bistable RP, which is reset at count m/2 of divider ZO. The reset output of RP may be taken from the m output of ZO, if signals to AND gates, such as RU are provided from an m/2 output (not shown) of the dividers ZI-ZL. The re-establishing of the 180 degree phase shift in the above manner is stated to remove the influence of transit time changes on pulse train frequency. The number of incoming lines I-L may vary from node to node in the system, but the thresholding is arranged so that the amount of frequency deviation undergone by local oscillator O to trigger the reference phase conditions, is the same for all nodes.
Patent GB-195830-A (GB)
Abstract: 195,830. Ortegat, C. P. Feb. 22, 1922. No Patent granted (Seading fee not paid). Hair washes.-A hair lotion is made by boiling one pound of cloves and a quarter of a pound of flowers of camomile in twelve pints of water until reduced to six pints of liquid.
Patent GB-995304-A (GB)
Title: Improvements in cleansing devices for navigational waters
IPC: E02F5/00
Filed: 1963-05-17
Abstract: 995,304. Scavenging vessels.. F. R. CADDICK. May 19, 1964 [May 17, 1963], No. 19632/63. Heading B7A. A cleansing device for navigational waters comprises a craft 2 having driving means 10 and steering means 12, a lifting device mounted on the craft for lifting flotsam, said lifting device being movable between a lifting position in which it is partially immersed and a discharging position in which it is above said waters, and means to move the lifting device between said positions. The lifting device comprises an arm 18 pivoted on the craft at 20 and movable by hydraulic rams 22, and having pivoted thereto at 26 a scoop 24 movable by hydraulic rams 28. The motor 4 driving the propeller 10 also drives pumps 32 and 42 which supply hydraulic fluid to the rams 22, 28 and to the rudder operating rams 14 respectively. The craft may be propelled by water jets, the hydraulic means may be replaced by mechanical devices, and the scoop 24 may be replaced by other apparatus, e.g. a bucket or a cutting device.
Patent GB-315303-A (GB)
Title: Improvements in and relating to processes for the production of electric insulating material
IPC: B28B7/34
Filed: 1929-06-26
Abstract: 315,303. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõls-Ges.). July 11, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Pressing.-Moulds made of rustless steel, or having the working-surface plated with nickel or chromium, are used for pressing a mixture of glass and asbestos or mica. The material is used for electric insulators, and the purpose of the invention is to prevent colouring of the surface of the insulators by rust on the surface of the mould.
Patent GB-1335796-A (GB)
Title: Manufacture of roller chain
IPC: B21L9/02
Filed: 1972-04-28
Abstract: 1335796 Making chains BORG-WARNER CORP 28 April 1972 [30 June 1971] 19841/72 Heading B3A The method of making a roller chain comprises roughening the surface of a cylindrical bushing 20, by shot-peening, to form asperities and craters on the surface thereof, hardening the roughened bushing to increase its wear and deformation resistance, and press-fitting a side plate 16, 18 on each end of the bushing. The bushings 20 may be formed of bar, sheet or tubular stock and are surrounded by a roller 22 which may or may not be rotatable. Primary links 10 are connected together by secondary links 12 using pins 14 whose ends may be upset to retain them in position. The roughening on the bushings increases the retention in the side plates 16, 18 and is followed by hardening and heat treatment of the bushings.
Patent GB-440247-A (GB)
Title: Improvements in and relating to electrolytic gas producers
IPC: C25B9/17
Filed: 1935-07-12
Abstract: 440,247. Electrolytic cells. SCHIRMER, L., 96, Goebelstrasse, Siemensstadt, Berlin. July 12, 1935, No. 20015. [Class 41] An electrolytic gas generator for working under pressure comprises a set of bi-polar electrode plates M, mounted with intervening diaphragms and spacing rings J between end electrodes in a container A ; means are provided for pressing the rings and electrodes against the insulating lining B of the container. The ring J comprises a metal core K surrounded by material which expands when saturated with the electrolyte or on heating ; asbestos fabric, spongy rubber or fibrous materials are suitable. Gaps E in the covering of the top limb of alternate rings permit passage of a mixture of oxygen and electrolyte into a channel D<1> in a segmental body C mounted over the electrode assemblage. The mixture passes by a pipe F<1> to a separator G\ liquid being restored to the bottom of the cell through a cooling coil. Similar gaps are provided in the intervening rings for removal of hydrogen and electrolyte through a channel D<2> and pipe F<2>. The pipes F<1>, F<2> are connected by a pressure-equalizing pipe ; this may be provided with a permeable diaphragm or its ends may open upwardly into the pipes F<1>, F<2> in order to prevent mixing of the gases. Each electrode is provided at the bottom with notches in which are mounted screw-threaded studs N carrying nuts whereby the electrode may be pressed upwards against the sealing material B. The diaphragms may be provided with end flanges inside which the rings and electrodes are mounted ; in this case the insulation B may be dispensed with.
Patent GB-335890-A (GB)
Title: Improvements in or relating to the manufacture of safety glass
IPC: B32B17/08
Filed: 1929-06-29
Abstract: 335,890. Barratt, S. June 29, 1929. Compound transparent sheets.-Knife marks on the cellulose derivative sheet used in forming compound transparent sheets are removed by softening the sheet and pressing it with a hard surface, such as that of the gelatine-coated glass sheets to which it is to be united. The gelatine coating the glass is dried so that it will not soften at the temperature and pressure used in forming the compound sheet and about 0.75 per cent of water by weight is added to the cellulose sheet when the uniting temperature is 240‹ F. and the pressure 100-150 lbs. per square inch. The sheets are assembled and placed in a rubber bag which is sealed and exhausted nearly to a vacuum. They are then heated and pressed in a steel chamber by means of steam and air and finally cooled at a lowered pressure of about 40 lbs. by pumping in cold water.
Patent GB-221209-A (GB)
Title: Method of producing pure alumina
IPC: C01F7/26
Filed: 1924-08-25
Abstract: Alumina is produced by dissolving raw material in hot sulphuric acid of such concentration that when separated from insoluble matter all the water is bound as water of crystallization when the solution cools.  This water is then evaporated in vacuo without fusing the sulphate, so that an anhydrous sulphate of high porosity is formed, which is heated in the form of granules or pieces until the remaining product consists of granular pieces of oxide of high porosity.  This alumina may be purified from iron by reducing the iron oxide to metallic iron by reducing gases or by the addition of a little aluminium, and heating the reduced product in a current of chlorine in the presence of aluminium chloride, so that the iron is vaporized as iron chloride.  The alumina may also be purified from iron by heating it with aluminium chloride only so that alumina and vaporized iron chloride is formed.