baber/WOPTO huggingface dataset:
Patent GB-1049763-A (GB)
Title: Rolling mills
Inventor: FREDBOND HARRY LAURENCE
IPC: B21B1/18
Filed: 1963-05-16
Abstract: 1,049,763. Rolling. DAVY & UNITED ENGINEERING CO. Ltd. May 6, 1964 [May 16, 1963], No. 19584/63. Heading B3M. A pair of rolling mill stands 12 and 13 for a rod mill are mounted on a common underframe 14, the stand 13 being adjustable on the underframe in a direction transverse to the rolling line. The two rolls 30 of stand 12 are provided with a number of oval passes, the rolls 31 of the following stand 13 having twice that number of round passes. When a circular pass of rolls 31 becomes worn the whole stand is shifted laterally to present an adjacent round pass for alignment with the same oval pass of stand 12. By the time that round pass is worn, the oval pass is also worn and the two stands on the underframe are lifted clear of the pass line and replaced by fresh stands. Each stand is supported on cams 24, rotatably mounted on shafts 25, the shafts being carried in lugs 28 upstanding from the underframe. The stands are bolted down to the lugs using quickly releasable nuts 38. The angular positions of the cam 24 determine the vertical height of the stands. A gap (Fig. 2, not shown) exists between each lug 28 of stand 13 and the two cams flanking it to allow lateral shifting of the stand by means of a pivoted lever 41 and links 43. Plates 36 locate the housing relative to the cam 24, and lugs 34, and 35, Fig. 1, locate each stand relative to the underframe. The upper T-shaped portion 20 of each stand is prestressed by bolts 2 to the lower U-shaped portion 17.
Patent GB-1040348-A (GB)
Title: Portable solenoid driven stapler
IPC: B25C5/02
Filed: 1964-05-12
Abstract: 1,040,348. Stapling machines. THOMAS COLLATORS Inc. May 12, 1964 [May 13, 1963], No. 19641/64. Heading B4C. A machine for fastening together a group of sheets comprises a stapling device 5 having a head 12 and an anvil 10 mounted in a base B of the machine, a solenoid 26 for driving the head into contact with the anvil and a cover C pivoted on the base. The stapling device is in the form of a conventional portable stapler and is provided with a knob 22 against which a roller 30, connected to a lever 32, operates; the lever 32 is coupled via links 28 to the armature 31 of the solenoid 26. The cover C is locked in the position shown in Fig. 2 by means of a spring- loaded plunger 68, having a portion 66 adapted to engage in a dovetail slot formed in a cover 25 secured to the base B. A transparent flap 56 is pivoted on the cover C in order to guard the throat opening of the stapler. In operation, a switch 61 is first closed and the sheets to be stapled pushed under the head so that they abut a lever 38 connected via a pawl 42, to a lever 40 of a switch 36, movement of the lever 38 causing the solenoid to be energized. The impact of the stapling head 12 against the anvil causes the pawl to jump out of engagement with the switch lever 40 and thereby de-energize the solenoid. The switch 36 is mounted on a guide bar 47 so that the position of the switch may be adjusted by means of a knob 48. An extension 44 is provided on the lever 38 in order to permit the sheets to be stapled close to their edge.
Patent GB-394014-A (GB)
Title: Improvements in or relating to electric couplings for sparkingplugs
IPC: H01T13/05
Filed: 1931-12-14
Abstract: 394,014. Two-part couplings. GUINNESS, K. E. L., 10, Cadogan Square, London, CARINGTON, C. M., Ladder Stile Cottage, Kingston Hill, Surrey, and K.L.G. SPARKING PLUGS, Ltd., Putney Vale, London. Dec. 14, 1931, No. 19707/32. Divided on 393,952. [Class 38 (i).] Connection is made between a lead 10 and a ball-headed terminal 49 of a sparking plug 19 by means of a coiled spring 50 pressed down over the head 49. A ring 51 attached to the base of the spring is secured by a spring ring 52 under a shoulder 42 in an insulating elbow 41 fitted in a screening hood 36 attached to the plug by a spring ring 16; as described in Specification 393,952. A metal cap 47 on the lead 10 makes contact with the ring 51, the metal braiding 43 of the lead 10 being attached by collars 44, 45 to the hood 36, and a resilient ring 46 being arranged between the ring 45 and the member 41.
Patent GB-256649-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: H03F1/16
Filed: 1925-05-11
Abstract: 256,649. Hazeltine Corporation, (Assignees of Hazeltine, L. A.). Feb. 27, 1925, [Convention date]. Thermionic amplifiers.-In a thermionic amplifier the components or wiring are so arranged as to introduce an inherent capacity adapted to neutralize at least part of the inherent undesirable coupling. The desired capacity may be provided by placing the tuning condensers adjacent to one another and the amount may be adjusted by movement of an electrostatic shield or screen. Alternatively the capacity existing between coils and transformers may be utilized. Fig. 1 shows an earth shield S arranged between the high potential terminal of coil LS1, and the apparatus connected to the grid of the value A1 to produce a natural capacity Cn to give neutralization as described in Specifications 222,895 and 223,181. In addition, to neutralize the coupling between the input of one value and the input of another a neutralizing winding may be coupled to the input inductance s and a wire therefrom arranged adjacent the input of the second valve. Alternatively a wire may be connected to the plate of the second valve and arranged adjacent the input of the first valve. Specifications 119,365, 231,820, 238,256, and 248,311 are also referred to.
Patent GB-459789-A (GB)
Title: Improvements in or relating to the stabilisation of lubricating oils or the like
Filed: 1935-07-11
Abstract: Sludge formation in lubricating-oils and the like is prevented and oxygen-absorption at raised temperature is reduced by forming a stable colloidal dispersion of tin hydroxide or tin oxide (stannous or stannic), in the oil with the aid of a dispersing agent.  The tin oxides or hydroxides may be prepared by precipitation with alkalis, by treating organic or inorganic stannites or stannates with acids; by heating organic tin compounds, e.g. fatty acid salts, resinates, xanthates, formate; from tin salts of aliphatic acids, e.g. by heating tin acetate with benzyl alcohol; and by treating an organic salt of tin with an organic base; but ignited tin oxide does not form a stable colloidal dispersion.  The average particle size should be not over 0,0002 cms. diameter and is preferably about 0,00002. The quantity may be about 0,1 or 0,2 per cent.  Dispersing agents specified are aluminium and zinc stearates, glyceride, fatty acid, methyl-cyclohexanol stearate or phthalate, triacetin, cetaceum, fats, petroleum jelly, ceresine wax, cetyl alcohol.  The dispersion may be prepared as follows: (1) a solution of stannous chloride in butyl or benzyl alcohol is stirred into ethanolamine, triethanolamine, pyridine, o-toluidine or quinoline to precipitate the finely-divided oxide or hydrate, excess base is neutralized with fatty acid, and oil is added; a dispersing agent and oil may be added to the tin solution or to the base; (2) tin oxide or hydrate is dissolved in ethanolamine or triethanolamine, a dispersing agent with or without oil is added before or after solution, the base is neutralized, preferably with fatty acid, and oil is stirred in; (3) a tin salt of an aliphatic acid is treated with an organic base, and the precipitated oxide or hydrate with dispersing agent is mixed with oil; (4) stannous chloride is dissolved in excess of ethanolamine or triethanolamine and added to oil directly, or after neutralization of excess base with fatty acid; (5) aluminium stearate is dissolved in oil, finely-divided stannic oxide is stirred in and more oil added.  In the example, a precipitate formed by adding sodium carbonate to stannous chloride solution is washed, heated with glacial acetic acid until dissolved, oleic acid is added and the acetic acid distilled off, the tin oleate is neutralized with pyridine and the resulting dispersion is added to oil.
Patent GB-1030147-A (GB)
Title: Improvements in looped pile fabrics
Inventor: HUGHES HAROLD THOMAS
IPC: D03D27/00
Filed: 1964-05-13
Abstract: The base fabric of terry towelling is woven from blended yarns of cotton and staple fibre polyester, the pile being of cotton.
Patent GB-726751-A (GB)
Title: Improvements in or relating to apparatus for machining circumferentially profiled surfaces
Inventor: LOVE PHIL PRINCE
IPC: B23Q35/10
Filed: 1953-07-17
Abstract: 726,751. Copy-turning. GLACIER METAL CO., Ltd. July 17, 1953, No. 19887/53. Class 83 (3). Apparatus for machining circumferentially profiled surfaces, particularly bores of bearings, of the kind in which a tool-carrying bar is moved towards and away from the axis of rotation of the work by a cam, is characterized in that the tool-carrying bar is pivoted on the saddle or slide of a lathe or boring machine and coacts with a master cam also mounted on the saddle or slide so that said bar itself functions as a lever for transmitting copying-movement from the cam to the cutting tool. The toolcarrying bar 20 is supported in a housing 1 on the lathe saddle 2, between pivots 17, and carries at the end remote from the tool 22, a ball 23 held in engagement with the cam 4, by a spring 24. The cam, on a shaft 5, is driven through gearing from a shaft 6. Preferably the tool-carrying bar is so proportioned that natural vibrational frequencies are remote from the frequency of any periodic disturbance arising from the cam profile, and the centre of percussion of the bar substantially coincides with the fulcrum thereof. As applied to the machining of external surfaces the invention is stated to be of use in the production of milling cutters. Specifications 684,247 and 715,562, [both in Group XXXIV], are referred to.
Patent GB-1333329-A (GB)
Title: Phosphor recovery
IPC: C01F17/218
Filed: 1971-06-10
Abstract: 1333329 Luminescent materials and uses thereof PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 June 1971 [13 June 1970] 19909/71 Heading C4S A method of recovering a rare earth metal phosphor containing also a sulphide and/or selenide of Zn and/or Cd, comprises mixing with an oxygen liberating salt, heating for # hour at at least 300 C. and washing with water. The oxygen liberating salt is defined as a salt liberating oxygen on heating. The water washing may be preceded by dilute acid washing to remove the oxides, the oxidizing salt may be stoichiometrically in excess of that required to completely oxidize the sulphide and/or selenide, and heating may be¢ to 3 hours at 400 to 800 C. for example, the precise time and temperature depending on quantity of contaminants, and chemical resistance of same determined by crystal shape and size for example. Oxygen liberating salts may be nitrates and/or halates such as nitrates, chlorates or bromates of alkali metals (e.g. K) or alkaline earth metals. The method is particularly applicable to p.v.a. photosensitive slurries as in red, green, blue c.r.t.s. using, for instance, Eu or Sn activated rare earth oxides, vanadates or oxysulphides of the rare earth metal, the slurries containing p.v.a., Cr compounds, and blue ZnS : Ag with green ZnCdS : Ag for instance. The p.v.a. is oxidized to form gaseous compounds such as CO 2  and water vapour, and Cr compounds oxidized to water soluble chromates. Screen failure and c.r.t. rejections are also mentioned. Phosphor combinations include GdVo 4  Eu; (Zn, Cd)S; ZnS with 2À0% by wt. ZnS and 0À01% by wt. CdS mixed with NaNO 3 ; Y 2 O 3 : Eu and 2% ZnS mixed with KBrO 3 ; and Y 2 O 2 S : Eu with 2% ZnS mixed with KClO 3  ; the final phosphors containing respectively 0À005%; 0À01% and 0À005% by wt. of the sulphides.
Patent GB-1493007-A (GB)
Title: Hose structure
IPC: B29C53/00
Filed: 1975-05-12
Abstract: 1493007 Curing braided rubber hose GOODYEAR TIRE & RUBBER CO 2 Feb 1976 [12 May 1975] 19918/75 Heading B5A [Also in Division F2] In making a hose a layer of uncured rubber 17 is supported on a mandrel and surrounded by reinforcement filaments such as braided groups 18 and then cured the uncured rubber layer being provided with recesses to accommodate expansion of the mandrel and/or expansion of the uncured rubber and/or shrinkage of the filaments, the dimensions of the recesses being such as to prevent rubber being exuded above the reinforcement filaments on curing. The recesses are on the surface of the layer 17 beneath the reinforcement and may be V-shaped 19, U-shaped, square 24 or heart shaped, and may take the form of longitudinal grooves formed during extrusion of the rubber layer. More than one layer of reinforcement filaments may be provided separated by an additional layer of uncured rubber which may also be grooved.
Patent GB-722224-A (GB)
Title: Improvements in or relating to gully gratings
IPC: E03F5/06
Filed: 1952-08-08
Abstract: 722,224. Gratings. HERBERT, E. B. Aug. 7, 1953 [Aug. 8, 1952], No. 19985/52. Class 107. A gully grating is composed of spaced cast bars bearing integral bosses normal thereto and acting as spacers when screwed rods are threaded through cored holes in the bosses to maintain the bars in operative position. The end bars of the grating may be constructed with downwardly and outwardly sloping ends to engage beneath mating lugs or bosses on the cast iron frame so that the grating cannot be removed by a vertical lift. The bars 12 are of inverted T-section and bosses 14 are arranged on one side only. The last bar 10 of the series has no bosses and completes the sequence. Rods 19 are threaded through the aligned bosses and nuts 21 are then screwed on. The ends of the end bars 11, 12 are sloped downwardly and outwardly (17), the other bars having inwardly sloped ends 18. A frame with corresponding features is described and illustrated and mates with the gully grating to prevent direct vertical lifting from dislodging the grating.
Patent GB-218860-A (GB)
Title: Improvements in razors
IPC: B26B21/02
Filed: 1923-08-07
Abstract: 218,860. Hamilton, W. H. W. Aug. 7, 1923. Razors.-A razor, which can be converted into a safety razor for use in either hand, comprises a. resilient holder 4, having spaced sides 3 supporting a removable blade 1 longitudinally thereof, and a guard 13 having its shank 12 pivotally supported within the bifurcated shank 5 of the holder and movable transversely on its pivot to position the guard against either side of the blade. The guard is pivoted on a bushing 10 of the pivot 7 by which the holder is pivoted in the handle 9, the sides of the bushing spacing the arms 6 of the shank 5. The guard is held to the blade by one or other of two lateral hook extensions 16 which surround and slidably grip the adjacent end of the blade.
Patent GB-779511-A (GB)
Title: A stereoscopic range finder, particularly for cameras
IPC: G03B13/02
Filed: 1955-07-12
Abstract: 779,511. Stereoscopic rangefinders: photographic cameras. WILKENSON, E. A. July 12, 1955 [July 13, 1954], No: 20133/55. Classes 97(1) and 98(1) A stereoscopic rangefinder has two optical systems, one for each eye, each adapted to form a vertical stereoscopic part image of a range scale in the field of view out of a substantially line-shaped range mark in each system and at least one device adjustable along the range mark and adapted specially to mark a section of the range mark and thus the part image in the field of view. The range mark shown in Fig. 2 comprises a plate 11 bearing a scale shaped perspectively as shown and extending from a near distance to infinity. The scale is intended for use with a photographic camera and the masking device comprises a plate 17 transparent between two curved lines 18, 19 calculated according to the depth of field of the camera at different apertures, and opaque outside these lines. The plate 17 is movable over the flats 18 so that the lines 17 and 18 can move along the scale to change the mean distance ranged on and perpendicular to the scale to change the depth of ranging according to the diaphargm setting of the camera lens. Fig. 6 shows in plan the rangefinder incorporated into a camera. Light from the range scales 33, 34, corresponding to Fig. 2, are reflected upwards by prisms 31, 32 through lenses 29, 30 with vertical axes and reflected horizontally into the eyes through semi-transparent reflectors (not shown) through which the object ranged is directly viewed. The marking devices 37 corresponding to Fig. 4 are mounted on a bridge 38 vertically movable on a shaft 39 according to the focussing movement of the camera lens 20, the shaft 39 being rotated by a link 40 according to the setting of the diaphragm adjustment 41, these movements moving the marking device respectively along and perpendicular to the range scales 33, 34.
Patent GB-889505-A (GB)
Title: Improvements in firing mechanisms for aircraft seat ejection devices
IPC: B64C1/32
Filed: 1957-06-26
Abstract: 889,505. Aircraft ejector seats. MARTIN J and MARTIN-BAKER AIRCRAFT CO. Ltd. June 12, 1958 [June 26,. 1957], No. 20144 /57.: Class 4. In mechanism for firing the gun on an aircraft; ejection seat wherein the firing pin 15. is .restrained and operated in conventional manner by a sear 24 operated by movement of the pilot's face blind, an additional restraining device in the form of a pin 29 is provided for operation by the full movement of the cockpit canopy 48 prior to ejection. The pin 29 passes through a hollow bolt 32 attaching a drogue shackle 33 and engages the firing pin by passing through slots in bifurcations 21 on the firing pin and resting on shoulders 28 of the firing pin housing. The other end of pin 29 is pivotally connected to a lever 36 pivoted to the seat structure at 37 and held in its inoperative full line position in Fig. 5 by a shear pin 41 or a spring 43, lever 36 being capable of movement to the chain dotted position to withdraw pin 29, when the lever is arrested by a stop bar 45 fast with the seat structure. Movement of lever 36 is effected by a tie rod 58 of adjustable length pivoted at one end to lever 36 and at the other end to one half of a clam-shell cockpit canopy 48. Rod 58 has a limited amount of free movement so that the pin 29 is not withdrawn when the canopy 48 is moved to its normal position permitting normal entry to or exit from the cockpit. Further movement of the canopy to ensure freedon of ejection of the seat tensions rod 58 and withdraws pin 29, the pin connecting rod 58 to pin 29 shearing, to allow the rod to be moved out of the path of the seat by a spring loaded tie-rod 71 attached to the canopy. In addition to the seat 24 and pin 29 a time delay mechanism for the firing pin may be provided. This comprises a rack,fast with the firing pin to mesh with a train of gears driving on escapement mechanism. In aircraft having cockpit canopies which are entirely jettisoned before the seat is ejected, the pin may be withdrawn by a cable running over pulleys and provided with sufficient slack to provide a time delay. This may be in place of or additional to the time delay mechanism previously described. Specifications 583,257, 721,752, 761,457, 761,506, 763,580 and 815,058 are referred to.
Patent GB-456021-A (GB)
Title: Improvements in or relating to devices for maintaining the shape of hats
IPC: A42B1/00
Filed: 1935-07-15
Abstract: 456,021. Hats. THORNTON; S., 367, Collins Street, Melbourne, Australia. July 15, 1935, No. 20166. [Class 63] [See also Group XIV] A device for maintaining the shape of a hat when not in use, which device can be used as a hat holder, comprises a wire 5 bent into circular form with its ends overlapping, a similar larger wire 6 connected to the first wire by struts 7, a bar or frame 11 loosely engaging the overlapping ends of the smaller member for decreasing its size for insertion into the hat, and, preferably, a third circular wire 3 of dimensions similar to the first wire and carrying posts 8 having sliding engagement with the wire 5 and continuations of the struts 7. A thumb piece 12 co-operates with the frame 11 for contraction of the device before insertion into the hat, and a loop 10 enables the whole to be hung on a hook or peg. Extensions 9 of the struts 7 form feet upon which the device may stand.
Patent GB-614201-A (GB)
Title: Improvements in engine starting devices
IPC: F02N15/06
Filed: 1946-07-05
Abstract: 614,201. Turning-gear. BENDIX AVIATION CORPORATION. July 5, 1946, No. 20211. Convention date, Aug. 2, 1945. [Class 7 (v)] The engine starter drive described in Specification 566,399 has modified latching means for preventing disengagement of the pinion from the engine gear, said means comprising a barrel member secured to the nut by which the pinion is operated. The starting motor SM has an armature shaft 1 on which is journalled the sliding pinion 6 engageable with an engine gear 7. A sleeve 3 is pinned to shaft 1 and a screw-shaft 8 loose on the sleeve is driven therefrom through a spring 11. The screw coacts with a nut 12 secured to a barrel 13 and connected to the pinion through an overrunning toothed clutch 17, 19, the members of which are normally separated by a spring 25. In order to restrain initial rotation of the pinion to ensure prompt engagement, a detent 26 is connected to the plunger of the starter switch 27 and is projected into frictional engagement with the barrel, Fig. 1, when the switch is operated by closing the usual manual switch 33. The barrel and pinion are thus moved forward and when the pinion engages the stop 39 the clutch 17, 19 is engaged and torque is transmitted to the pinion. In this position the detent engages behind a shoulder 15 on the barrel, thus preventing premature demesh of the pinion. The detent is located to allow the barrel to move back sufficiently to disengage the clutch teeth when the engine fires. If the engine threatens to stall, the operator keeps switch 33 closed, preventing demesh of the pinion and causing cranking to be resumed when the engine speed falls sufficiently. When the engine runs on the switch 33 is released and the torque transmitted through the spring 25 causes return of the pinion to the Fig. 1 position. In a modification, Fig. 3, the switch plunger 27 acts through a flexible spring member 41 which has a bent-over end 43 adapted to engage behind the barrel 13 and prevent withdrawal of the pinion. In a modification of this form, the spring member 41 carries a block of non-metallic material to prevent wear.
Patent GB-642858-A (GB)
Title: Improvements in or relating to electrically heated tanks for heating and melting substances
Inventor: BARTON ALBERT VICTOR
IPC: H05B3/00
Filed: 1948-07-29
Abstract: 642,858. Electrically - heated melting- tanks. GILLOTT ELECTRO STEAM COOKERS, Ltd. July 29, 1948, No. 20273. [Class 39(iii)] A metal tank 12 has electric heating elements 17 removably contained in tubes 14 cast within the side or end walls and the bottom of the tank. The tank may be a single unit with one or more intermediate sections or two end sections interconnected by suitable flanges 10. The base of the tank may have inwardly directed ridges 9, the bottom heating elements being in the crests or below the troughs formed by the ridges. The tank is heat lagged and thermostatic control means may be housed in a tube 18 in a side wall or the base. The tank may be of aluminium, the tubes of mild steel and the assembly may be used for melting thermo - plastic and thermo - setting materials. A terminal box may be secured to one end wall.
Patent GB-424468-A (GB)
Title: Shoe lasts and method of manufacturing same
IPC: A43D3/02
Filed: 1934-07-11
Abstract: An alloy for making shoe lasts consists of 50-95 per cent or more of magnesium.  In one example, the alloy consists of 91,8 per cent of magnesium, 8,0 per cent of aluminium, and 0,2 per cent of manganese. Another example consists of 93,7 per cent of magnesium, 6,0 per cent of aluminium and 0,3 per cent of manganese.