baber/WOPTO huggingface dataset:
Patent GB-1384752-A (GB)
Title: Gear rolling machine
IPC: B21H5/02
Filed: 1972-07-05
Abstract: 1384752 Rolling mills LEAR SIEGLER Inc 5 July 1972 [6 July 1971 10 May 1972] 31413/72 Heading B3M A gear rolling machine includes a gear rolling die 24 carried on a fixed support 20, a second die 34 carried on a vertically movable support 30, and a workpiece holder 24 which positions a workpiece gear 48 between the dies. The holder 24 allows free vertical movement of the gear 48 during a rolling operation, but positions the gear clear of both dies during a loading or unloading operation when the die 34 is moved away from the die 24. As shown in Fig. 1, the workpiece holder 44 is connected by a rod to a spring assembly 50 which biases the holder upwardly. However, when the support 30 is moved downwardly by a cylinder unit 36, a C-shaped bracket at 52 pulls the lower end of the rod downwardly (after a degree of lost motion) until the holder 44 abuts an adjustable stop 49. A spring capsule carried by the rod permits the rod to continue moving downwardly without moving the holder 44. The spring assembly 50 provides a counterbalancing force which either biases the holder upwardly, or just allows it to fall under the action of gravity. The two dies are carried on supports whose angle of skew can be varied. In an alternative form, Fig. 3, a simple biassing spring 176 is provided, and a cylinder unit 182. The unit moves the workpiece support downwardly against a stop 180 when the lower die support is lowered. The unit 182 can be used alone, without the need for a counterbalancing spring. (For Figures see next page.)
Patent GB-211552-A (GB)
Title: Improvements in resilient wheels
IPC: B60B9/12
Filed: 1922-11-17
Abstract: 211,552. King, H. C. Nov. 17, 1922. Spring wheels.-The annular plate 7 carrying the tyre is set back near the centre as at 10 and is flanged laterally as at 11. A second ring 12 with a lateral flange 13 is secured tn the plate 7 and forms therewith a space 14 forming a guide for the periphery of a plate 3 secured to the e hub and supporting angle rings 4, 5. Annular resilient cushions 15 are housed between the lateral flanges 4, 11 and 5, 16 which may be formed with projections 16 or waved, corrugated or roughened to prevent creeping of the cushion.
Patent GB-922687-A (GB)
Title: Machine tool control mechanism
IPC: B23Q35/18
Filed: 1961-09-01
Abstract: 922,687. Machine tool details. S. R. CUDNOHUFSKY. Sept. 1, 1961 [June 21, 1961], No. 31494/61. Class 83 (3). The rotating or reciprocating table 12 of a machine tool is moved relative to the base 10, by a rotary or reciprocating motor 14, which is stopped at predetermined positions when the back pressure is built up in hydraulic conduits 70,120,104, by a valve 22, having a stylus 20 actuated by a template 16 carried by table 12. Valve 22 is movable perpendicular to the direction of travel of table 12, by a hand wheel 26, or a piston (not shown), and comprises a piston 32 slidable in a bore 30, and a shoulder 42 on the piston, which co-operates with a shoulder 74 in the bore, to form a restriction 76 for fluid passing through a conduit 40. The fluid passes from the restriction 76, through radial passages 48, and a bore 50, and is then discharged through a port 38. A plunger 52, guided by a bearing 68, engages the end of piston 32, and also a lever 60 which pivots at 62, and carries stylus 20, the limit of such pivoting being controlled by a screw 66. Fluid for operating motor 14 is supplied by a lowpressure pump 80, through a conduit 82, a pilot valve 86, a directional valve 88, and a conduit 102, and is discharged from the motor through conduit 104, valve 88 and conduit 120, until it joins hydraulic fluid supplied to a conduit 70 by a high-pressure pump 106, which controls valve 22. In operation with a tool mounted on base 10, and a workpiece mounted on table 12 (or vice versa), a switch is depressed to energize a solenoid 90, and valve 86 moves to the position of Fig. 2. Oil flows from pump 80 through conduit 82, and conduit 96, to actuate a cylinder 94 to position valve 88, thus allowing oil to flow to motor 14 through conduit 102. Oil exhausts from motor 14, through conduit 104, and merges with oil flowing from pump 106, and thence through restriction 76 in valve 22, and to a sump 112. The table is moved in the direction of the arrow, Fig. 2, by motor 14, until shoulder 18 on template 16 engages stylus 20, whereupon lever 60 is pivoted in a counterclockwise direction, thus closing restriction 76. Pressure is built up in lines 70, 104 and 120, until it equals the driving force on motor 14, thus stopping the latter and therefore table 12, and a machining operation is carried out. Valve 22 is retracted to allow stylus 20 to clear shoulder 18, by hand wheel 26, and piston 32 in valve 22, is moved downwardly to relieve restriction 76. Motor 14 is again driven until stylus 20 engages shoulder 18a, and a second machining operation is carried out. The direction of motor 14 is reversed by actuating a solenoid 92 to move valves 86, 88, to reverse the lines 102, 104, to motor 14, and rapid table return is provided by an unloading valve 114.
Patent GB-483270-A (GB)
Title: Improvements in connecting rods
IPC: F16C9/04
Filed: 1937-11-16
Abstract: 483,270. Connecting-rod bearings. TEBALDI, A. Nov. 16, 1937, No. 31505. Convention date, Nov. 17, 1936. [Class 12 (i)] The contacting surfaces of a connecting-rod big-end 3 and the cap 4 have interengaging teeth and grooves 6, 7, disposed parallel to the bearing axis.
Patent GB-650742-A (GB)
Title: Improvements in the production of polymeric addition products of reactive methyleniccompounds and sulphone-activated ethylenic compounds
IPC: C08G61/12
Filed: 1947-11-28
Abstract: Addition polymers are made by mixing and heating if desired, in the presence of a basic catalyst a compound of the formula R1.R2.CH2, with a compound of the formula H.X.C= C.Y.SO2.(R3SO2)n.CY=CXH, where n is 0 or 1 R1 and R2 selected from -COOR, -COR, -CN, -CONH2, CONHR, -SO2R, where R is a hydrocarbon radical which under the conditions of the reaction is non-reactive, X and Y are radicals selected from hydrogen, alkyl or aryl, and R3 is a divalent organic radical selected from alkylene and oxybis-alkylene radicals.  The compound of formula R1R2CH2 may be dimethyl, diethyl, diallyl or dibutyl malonate, ethyl or propyl acetoacetate, ethyl or allyl cyanoacetate, acetyl acetone or bis-(methyl sulphonyl) methane. The other compound may be vinyl, propenyl, isopropenyl, styryl, 1-butenyl, alpha-ethyl vinyl, alpha-n-propyl vinyl or alpha phenyl vinyl sulphone, or 1,2-bis-(vinyl sulphonyl)-ethane, 1,4-bis-(vinyl sulphonyl)-butane, bis-(vinyl sulphonyl)-methane, or bis-(beta, beta-vinyl sulphonyl)-ethyl ether.  Specified basic catalysts are ethylamine, butylamine, cyclohexylamine, dimethylamine, piperidine, triethylamine, tributylamine trimethyl benzyl ammonium hydroxide, tetramethyl ammonium hydroxide, potassium or sodium hydroxide, sodium methoxide, potassium ethoxide, sodium hydride, sodamide, phenyl lithium, potassium carbonate, sodium, potassium, barium and calcium metals, sodium or potassium acetate and sodiodiethyl malonate.  The polymerization may be effected in the presence of solvents such as dioxane, chloroform, benzene, toluene, diethyl ether, ethylene dichloride, ethyl acetate, acetone, or formamide.  The mixture may contain chain terminating agents such as methyl diethyl malonate, ethyl alpha-cyanopropionate, alpha-cyano ethyl benzene or 2-nitro-propane.  The polymerization reaction may be terminated by the addition of acids such as acetic or oxalic, and the reaction effected under reduced or superatmospheric pressures.
Patent GB-1073666-A (GB)
Title: Coated abrasives
IPC: B23H5/08
Filed: 1965-07-23
Abstract: A water-resistant coated abrasive for use in electrolytic grinding, comprises electrically non-conductive abrasive grains bonded to the front surface of an electrically non-conductive flexible backing material, electrically conductive layers of material being bonded to the front and back surfaces of the backing material and being electrically connected together.  The material may be in the form of an endless belt or of a circular disc.  The backing may be of woven textile fibres.  The adhesive may be a phenolic resin and a good size adhesive.  The electrically conductive layer may be a foil of aluminum, copper, tin or lead and may be applied by vacuum metallizing or flamearraying. The electrically conducting means may be metal grommets, rivets or wires, or perforations in the backing through which the conductive layers extend or which may be filled with electrically conductive lacuquer.ALSO:A water-resistant coated abrasive for use in electrolytic grinding, comprises electrically non-conductive abrasive grains bonded to the front surface of an electrically non-conductive flexible backing material, electrically conductive layers of material being bonded to the front and back surfaces of the backing material and being electrically connected together.  The material may be in the form of an endless belt or of a circular disc.  The backing may be of woven textile fibres.  The adhesive may be a phenolic resin and a good size adhesive.  The electrically conductive layer may be a foil of aluminium, copper, tin or lead and may be applied by vacuum metallizing or flame-arraying. The electrically conducting means may be metal grommets, rivets or wires, or perforations in the backing through which the conductive layers extend or which may be filled with electrically conductive lacquer.
Patent GB-1506886-A (GB)
Title: Devices for exhausting fumes or dust from work stations
IPC: B08B15/00
Filed: 1976-07-26
Abstract: 1506886 Removing waste products in industrial processes CLEEN-FLO (MANCHESTER) Ltd 26 July 1976 [29 July 1975] 31592/75 Heading F4X A device for exhausting fumes and dust &c. from a work station comprises a flexible concertina-type conduit 1 having mounted at one end thereof the suction hood 2 and at the other end thereof the suction tube 15 of a fan (not shown), a pair of telescopic tubes 6, 7 interconnected by a tension spring 16 being disposed within the conduit 1, the tube 6 being connected to the hood by a universal joint arrangement 5, 5A attached to the hood, and the tube 7 being connected by a swivel joint 12 to the suction tube 15. Air flow through the conduit 1 may be regulated by a swivel damper. 18 operated by a lever 19, and by axial adjustment of a tapered sleeve 21, Fig. 6, within the hood. (For Figures see next column.)
Patent GB-848743-A (GB)
Title: Improvements in and relating to a device for measuring the speed of an aircraft or the like by means of radiant energy
IPC: G01S13/60
Filed: 1958-10-03
Abstract: 848,743. Measurement of aircraft speed. GAUDILLERE, P. Oct. 3, 1958 [Oct. 11, 1957], No. 31598/58. Class 40(3). [Also in Group XL(c)] In an arrangement for measuring on an aircraft the speed w of the aircraft relative to the ground, one beam of radiant energy comprising a signal of frequency p is directed forwardly of of the aircraft and another beam comprising a signal of different frequency q is directed rearwardly of the aircraft, the two beams being downwardly inclined at the same angle s relative to the horizontal and means being provided for deriving the beat frequency #<SP>1</SP> between the Doppler shifted frequencies p<SP>1</SP> and q<SP>1</SP> of the ground echo signals produced by the two beams. In such a system it is shown that where # f is the difference between the beat frequency f<SP>1</SP> and the beat frequency f between the transmitted frequencies p and q and c in the velocity of propagation. The signals of frequency p and q may be unmodulated continuous waves or continuous wave signals modulated in amplitude or frequency on to a carrier of higher frequency. The invention is described as using radio centimetric waves but modulated infra-red waves may be employed. In the modulated radio wave system shown, one output from a crystal oscillator of frequency F = 150 kc/s. is applied to a frequency divider 33 giving an output of frequency f/2 = 150 c/s. which is applied together with another output from the oscillator 32 to a ring modulator 34 giving outputs of frequency p = F + f/2 and q = F -f/2 (i.e. p - q = 300 c/s.) which modulate the output from a carrier wave oscillator 31 of frequency E = 10,000 mc/s. in separate modulators 37, 38 whose outputs are applied to the front and rear transmitting aerials 41, 42. The echo signals of frequency p<SP>1</SP> and q<SP>1</SP> produced by the front and rear transmitted signals are received by corresponding separate aerials 43, 44 and heterodyned in a receiver 45 giving a beat frequency#<SP>1</SP>which is selected by a filter 46 and applied to synchronize a local oscillator 47 giving a pure sinusoidal output of frequency f<SP>1</SP>. This signal of frequency f<SP>1</SP> and a signal of frequency f from the divider 33 are converted on to corresponding pulse trains of recurrence frequency f<SP>1</SP> and f in circuits 49, 48 and applied to a coincidence circuit 50 producing an output pulse train of recurrence frequency # # = #<SP>1</SP> - # which is applied (1) to a step-by-step motor 51 driving a "distance travelled" indicator 52 and (2) to a speed indicator 53 which measures the time interval # t between successive coincidence pulses; this latter arrangement may comprise an electronic counter, a phantastron circuit automatically controlled so that the duration of its output is equal to # t or a motor whose speed is automatically controlled so that a rotating contact driven by the motor supplies signals synchronized with the coincidence pulses.
Patent GB-537079-A (GB)
Title: Improvements in variable-pitch airscrews
IPC: B64C11/42
Filed: 1939-12-06
Abstract: 537,079. Screw propellers. BRISTOL AEROPLANE CO., Ltd., and BLYTH, J. D. Dec. 6, 1939, No. 31637. [Class 114] In an aircraft with accessories operated by a high-pressure hydraulic system and a variablepitch feathering airscrew 10 hydraulically actuated by engine lubricating-oil, a piston or the like 28 is provided between the two systems to allow the high pressure to be applied to the pitch motor without mixing the hydraulic liquids. Piston 28 is housed in a cylinder 27 connected by pipe 26 and manual valve 25 to the highpressure pipe 23 and low-pressure pipe 24 of the accessory system. Cylinder 27 is also connected by pipe 29 to the valve 17 controlling the piston 11 of the airscrew 10. Valve 17 is controlled by governor and manual means 20, 21 and is fed by a pump 15 driven by the' engine. To prevent loss of lubricating oil in the event of damage to pipe 29 or the high-pressure system, spring- loaded non-return valves 30, 31 are provided in pipes 26, 24 so that under normal conditions the total pressure of the spring loadings of these two valves is greater than the pressure in pipe 16 and valve 30 is held open, as shown. Valve 25 is also actuated, when the engine is at rest, to de-feather the blades so that the air stream will start the engine.
Patent GB-1461595-A (GB)
Title: Manufacture of pile fabrics
IPC: D04H11/00
Filed: 1973-07-03
Abstract: 1461595 Pile fabrics BLACKWOOD MORTON & SONS Ltd 23 April 1974 [2 May 1973 3 July 1973] 20796/73 and 31699/73 Heading D1K A pile fabric is produced by joining a "mother" pile fabric adhesively to a backing 13 by causing the mother pile fabric to form a flexion, for example around a roller 22 and subsequently cutting the pile by means of a cutter 26. Adhesive is spread by a roller 19 and doctor blade 20 and a heater 24 and cooler 25 may be provided. A presser roller 23 and not shown backing plate is provided. The apparatus may be modified as in Fig. 2 by a tuft-deflector bar 27 to assist securing tuft ends in the adhesive. The heater may be replaced with an induction oven comprising air jets to secure the tufts in the adhesive. The backing 13 may be hessian polypropylene and polyester. The backing may be coated with a backing of resilient foamed plastics or latex backing.
Patent GB-1310404-A (GB)
Title: Connector assembly for connecting line sections
Inventor: CHOW W
IPC: H01R24/38
Filed: 1970-06-30
Abstract: 1310404 Coaxial connectors BUNKER-RAMO CORP 30 June 1970 [17 July 1969] 31707/70 Heading H2E [Also in Division F2] A pipe coupling has two identical units 18 each having a coupling sleeve 24 and a coupling ring 26, either of the latter being axially movable to engage the coupling sleeve 24 of the other unit. Each unit 18 also includes a retainer body 19, a reaction ring 20, a tubular body 21 and centering sleeve 22, see also Figs. 6, 7, 8, 9 (not shown), respectively. On coupling adjacent line sections 12 one of the reaction rings 20 is pulled back against the action of spring 82 so that a tooth 84 no longer prevents the rotation of the coupling ring 26 on the same unit by engaging with its teeth 107. Then the ring 26 is screwed forward to engage threads 102 on the coupling sleeve of the adjacent unit. In doing so an annular shoulder 104 on the ring 26 engages shoulder 88 on the centering sleeve 22 so that it is simultaneously moved forward with it and the final coupling position is as shown in Fig. 4. The coupling sleeve 24 on each unit 18 is fixed axially by engaging sectors 66 projecting radially outwards from the tubular body 21 which is firmly attached to the line section 12. The centering sleeve 22 can slide between the body 21 and sleeve 24 since it has a circular section 96 and axially extending prongs 95 on which the shoulder 88 is located. The line section 12 may contain an air line or as shown a coaxial cable having centre conductor 16 and outer conductor 14. Contact between the centre conductors 16 is maintained contacts 58, both having four axially extending prongs 120. On coupling the units the contacts 58 are depressed and the prongs 120 forced against the conical ends 122 which in turn press the contacts 58 together so that electrical continuity is ensured.
Patent GB-433589-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: F21V19/00
Filed: 1934-11-05
Abstract: 433,589. Metallic-vapour apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Nov. 5, 1934, No. 31731. Convention date, Nov. 6, 1933. [Class 39 (i)] [See also Group XIII] In an electric discharge tube containing vapour of a difficultly volatilizable metal, such as sodium or cadmium, and comprising straight portions connected by a curved portion, such as the U-shaped tube 1, a coating is provided on the curved portion which poorly transmits heat so as to compensate for the greater heat losses of the curved portion compared with those of the straight portions. The coating is preferably reflecting, such as the silver coating 7, but may be a poor heat conductor, such as asbestos. If the tube is surrounded by an evacuated jacket 4, alternative or additional coatings 8 may be provided on the wall of the jacket opposite the curved portion. One end of the tube only is secured rigidly to the cap 3 which is locked by a pin 6 to a ring 5 to which the evacuated jacket is cemented. A neon filling may be provided.
Patent GB-842305-A (GB)
Title: Process for the production of a reaction product of calcium carbide
IPC: C01B32/942
Filed: 1958-10-06
Abstract: A mixture of calcium carbide and calcium fluoride is reacted with hydrogen at a temperature of 500 to 1000 DEG C. under a hydrogen pressure of 30 to 60 atmospheres, to produce methane and a solid sintered reaction product consisting of calcium fluoride and calcium hydride which is largely insensitive to moisture.  The initial mixture should contain at least 20% and preferably at least 50% of calcium carbide.  Reaction accelerating additives for example calcium oxide or chloride may be incorporated and the mixture may be formed into briquettes before reaction. Specification 792,017 is referred to.ALSO:A mixture of calcium carbide and calcium fluoride is reacted with hydrogen at a temperature of 500 to 1000 DEG C. under a hydrogen pressure of 30 to 60 atmospheres, to produce methane and a solid sintered reaction product consisting of calcium fluoride and calcium hydride which is largely insensitive to moisture.  The initial mixture should contain at least 20% and preferably at least 50% of calcium carbide.  Reaction accelerating additives for example calcium oxide or chloride may be incorporated and the mixture may be formed into briquettes before reaction. Specification 792,017 is referred to.
Patent GB-484126-A (GB)
Title: Improvements in or relating to micrometer gauges
IPC: G01B3/18
Filed: 1936-11-20
Abstract: 484,126. Linear - dimension gauges. TAYLOR, H. G., and WILLIAMSON, J. V. Nov. 20, 1936, No. 31856. [Class 106 (ii)] A micrometer gauge has a V-shaped abutment 10 facing in the same direction as the micrometer screw. A clamping screw 19 holds the abutment in contact with the surface. A feed screw 21, used for setting the cutter on a boring tool, &c., is in alignment with the micrometer screw 14. U.S.A. Specification 2,000,476 is referred to.
Patent GB-468122-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F04B1/29
Filed: 1936-11-21
Abstract: 468,122. Wobbler pumps. MERCIER, J. Nov. 21, 1936, No. 31926. Convention date, Nov. 27, 1935. [Class 102 (i)] In a pump of the wobbler type, especially applicable for the hydraulic transmission of power, the inclination of the wobbler is automatically adjusted in accordance with the discharge pressure, by the pressure of the pump plungers. The wobbler' 5 is pivoted at 7 to a tube 9 forming the driving shaft. A flattened ball 14, carried by a member 13 slidable in the tube 9, presses on the wobbler 5 under the action of a spring 17, the pressure of which is adjustable by means of a stop 18 and a nut 19. The suction valves 33 and discharge valves 34 communicate with grooves 29, 30, respectively, the grooves being in communication with the suction pipe 23 and the discharge pipe 24. The pump can be primed by means of a pipe 37 and a passage 35 between the interior of the casing and the groove 29. The pump may be connected to the motor by a coupling, e.g. ratchet gearing, which permits independent rotation of the pump for testing purposes.
Patent GB-1282741-A (GB)
Title: Improvements in or relating to the toughening of glass
IPC: C03B27/02
Filed: 1969-06-24
Abstract: 1282741 Toughening glass TRIPLEX SAFETY GLASS CO Ltd D G GIDDINGS and D TWIST 23 Dec 1969 [8 Jan 1969 24 June 1969] 1263/69 Heading C1M Glass of thickness 0À5-2À5 mm. (e.g. in sheet form) is toughened by heating to a temperature near its softening point and quenching with oil (e.g. by immersing in a bath) which is maintained at 150-240‹ C. so as to induce in the glass a ratio of surface compressive stress : central tensile stress of 1À5-3À5 : 1; the oil having a viscosity of 300-1000 centistokes at 38‹ C. and a flash point of 220-310‹ C. A soda-lime-silica glass may be heated to 600-740‹ C. The central tensile stress set up is preferably 285-460 kg./cm.<SP>2</SP> The glass may be employed in a glass laminate, e.g. for vehicle windscreens.