baber/WOPTO huggingface dataset:
Patent GB-1467581-A (GB)
Title: Shiftable change speed gear and transmissions employing same
IPC: F16H61/08
Filed: 1975-03-17
Abstract: 1467581 Change-speed gears; positive clutches EATON CORP 17 March 1975 [20 March 1974] 10979/75 Headings F2D and F2C A gear-wheel in a change-speed transmission is freely rotatable on a shaft and clutchable thereto by a positive clutch comprising relatively slidable members incorporating resilient means to effect clutch engagement on substantial synchronization of the wheel and shaft speeds. In one embodiment the wheel 31, Fig. 2, is axially located on the shaft 23 by rings 34, 35 and has a lateral, annular extension with internal splines 43 receiving a clutch collar 41 which is urged towards an abutment ring 44 by a spring 46. Internal splines 53 on the collar and external splines 52 on a second collar 47 splined to the shaft 23 are chamfered at 56, 54 whereby, on rightward movement of the collar 47 by a fork 51, the collar 41 may be displaced against the spring until synchronization occurs, whereupon the collar 41 is returned by the spring to engage the clutch. The collar 47 is extended at 47A to co-operate with a further collar 41A constituting another similar clutch to couple a gearwheel 18 to the shaft. In a second embodiment the fork 151, Fig. 3, compresses a spring 146 which, through a sleeve 181 and rods 177 causes displacement of the clutch collar 141 to engage an axially fixed clutch collar 147 on the shaft when the speeds are synchronized. Relatively weak springs 183 position the collar 141 out of engagement with the collar 147 when the clutch is not engaged. A further spring 146A on the sleeve 181 operates another clutch (not shown). In a modification of this embodiment the fork 151, spring 146, sleeve 181 and rods 177 are replaced by a fluid-pressure operated plunger contained in a bore in the shaft 23 and connected to the collar 141 by a diametral pin, the resilience for clutch engagement being provided by the pressure fluid. Synchronizing blockers as in Specification 1,446,598 may be provided. The clutching arrangements described may be incorporated in a transmission comprising a main section providing three or more forward ratios and reverse, followed by a range section providing two or more ratios, in which a main shaft, corresponding to the shaft 23, extends through the main section and into the range section and carries gear-wheels such as 31 which "float" between diametrically opposite countershafts. Alternatively, the main shaft or the countershaft may be mounted to "float". To facilitate ratio shifts a countershaft brake may be provided. Also, the main section shift lever may be interconnected with the shift control of the range section to facilitate a double shift.
Patent GB-1497725-A (GB)
Title: Adhesive for metal-clad sheeting
IPC: C09J7/30
Filed: 1975-03-17
Abstract: 1497725 Laminates MINNESOTA MINING & MFG CO 17 March 1975 [18 March 1974] 11033/75 Heading B5N [Also in Division C3] A multilayered sheet comprises a base sheet (S) of electrically-insulating polymer carrying on # 1 side an adhesive film (F), which is flexible both when uncured and when cured, and which comprises by wt.: 100 parts (A) a low-M,W, completely reacted adduct of (1) and (2), where (1) is a COOH-terminated polymer where X is an ester group; R and R<SP>1</SP> are hydrocarbon groups optionally interrupted by ether linkages; R<SP>2</SP> is H, halogen, or COOH, or a hydrocarbon group optionally substituted with COOH or halogen; R<SP>3</SP> is H, halogen optionally substituted with halogen, or a hydrocarbon group, optionally substituted with halogen or X-R-COOH; R<SP>4</SP> is H, halogen, or a hydrocarbon group, optionally substituted with halogen; and n # 1; and (2) is an epoxy compound containing # 1À3 oxirane groups per molecule; there being #2 epoxy equivalents of (2) per COOH-equivalent of (1); 25-200 parts (B) a high M.W. bisphenol-A/epichlorohydrin polyhydroxy-ether; and (C) an epoxy-reactive curing-agent. (C) may be, e.g. trimellitic anhydride. Sheet (S) may be joined via cured film(s) (F) to electrically-conducting metal layer(s) (L). Apertures may extend at least through (S) and (F). (L) may be patterned to provide electric circuitry, and other electrical components may be connected to (L). (S) may be of polyimide. Film (F) may be applied to (S) as a film from a release liner, or the adhesive may be coated on (S) or (L) and then B-staged. (L) may be of Cu, Al, or Nichrome.
Patent GB-1368937-A (GB)
Title: Reel on which slit strips can be coiled
IPC: B21C47/00
Filed: 1973-03-07
Abstract: 1368937 Coiling strip I UNGERER 7 March 1973 [18 Nov 1972] 11167/73 Heading B3E A slit strip coiler comprises a reel 2 on which the strips are coiled, a pressure roll 10 engageable with the coils to press the final turns against the coils, and a plurality of adhesive tape dispensers 13 located on the opposite side of the roll 10 from the strip source to tape the trailing end of each strip to its coil, roll 10 and a second pressure roll 11 being mounted on a rocker 9 pivoted at 8 to a lever 6. The latter is pivotable on fixed arm 5 by a jack 7. Roll 11 is urged towards the coils by a sprung pin 12. Each dispenser 13 is mounted on a lever 15 slidable and pivotable on a shaft 16 on rocker 9, the tape 18 passing from a reel 14 between rolls 19, 20. Each dispenser is located opposite a coil, and as the trailing end of a strip passes a sensor 22, an actuator 17 applies the dispenser to the coil to tape down the end of the strip. When the dispenser is raised, the tape is severed by a blade 20.
Patent GB-417340-A (GB)
Title: Improvements in the manufacture and production of sols and highly dispersed suspensions containing oxidic metal compounds
IPC: B01J13/00
Filed: 1933-04-18
Abstract: Colloidal sols or highly dispersed suspensions of oxidic metal compounds are obtained by reacting alkylene oxides on solutions of salts of heavy metals or earth metals and removing the glycol ester formed together with unreacted alkylene oxide before substantial formation of an irreversible precipitate sets in.  The reaction may be carried out between zero and 150 DEG  C., but preferably between 15 and 30 DEG  C.  The metal salts may be dissolved in water and in organic solvents such as ethyl alcohol or glycerol which should preferably contain water.  The salts of tri- and tetra-valent metals form oxide sols where as salts of divalent metals usually form suspensions of oxidic compounds such as oxychlorides, for example, cupric chloride gives copper oxychloride and if other metal salts are present, the metal hydroxide sols thus formed act as peptising agents for the copper oxychloride.  The alkylene oxides used must be soluble to some extent in the solvent used for the reaction, and in aqueous media those containing 2--4 carbon atoms are preferred. Alpha-olefine oxides such as ethylene oxide are suitable.  The glycol ester and unchanged alkylene oxide may be removed by extraction with organic solvents immiscible with water e.g. ether, benzene, chloroform, carbon tetrachloride or ethylene dichloride, or by distillation, preferably under reduced pressure, the temperature being about 100 DEG  C. and not exceeding 150 DEG  C.  In the latter case, the products are preferably evaporated to dryness and then taken up in water or other suitable liquid.  Numerous examples describe the preparation of sols or dispersions of aluminium oxide; mixed oxides or hydroxides of iron and aluminium; tin dioxide containing basic tin chloride; zirconium oxide; chromium oxide; thorium dioxide which is reversibly soluble; copper oxychloride; copper oxychloride and aluminium oxide; zinc oxychloride or mixture with zine oxide; and palladium oxide.
Patent GB-542204-A (GB)
Title: Improvements in or relating to the preparation of crude rubber
IPC: C08C3/00
Filed: 1939-04-14
Abstract: 542,204. Preparing rubber from latex. FAIRWEATHER, H. G. C. (Goodrich Co., B. F.). April 14, 1939, No. 11337. [Class 70] Crude rubber of normal nitrogen content and low water absorption capacity is obtained by coagulating fresh or substantially fresh Heavea latex, if desired by first flocculating the dilute latex, heating the wet colgulum to insolubilize the protein constituents, and washing to separate the water-soluble constituents therefrom. Both results may be achieved by treatment with hot water, or the insolubilization may be effected partly by chemical precipitants such as formalin or tannin. In the preferred method latex from a tank 1 is drawn into an ageing tank 2 in which sodium sulphide solution from tank 3 is added to it in the proportion of 20 grammes of crystalline hydrated sulphide to a litre of latex, the mixture being allowed to stand for from two to fourteen days, after which the latex is diluted with an equal volume of water from the main 4 and sufficient 2 per cent. acetic acid from tank 5 is added to make it acid to litmus. The treated latex is then discharged into weakly acid water (.05 per cent. acetic acid) in the flocculating tank 6, the creamed latex passing then to tank 7 from which it flows through a constant-level device 8 to the trough 9 of a drum filter 10, the rubber particles on the surface of the filter being washed by a hot water spray 11. The sheet of coagulum from the filter passes for further washing through almost boiling water in tank 12, through 20 per cent. formalin solution or 1-2 per cent. ammonia in trough 13 to a drier 14 and preferably, if subsequent breaking-down in the factory is to be avoided, through a hot-air softening chamber 15 to a winding device at 16, a spray 17 of talc being applied to prevent the layers from adhering together. Specification 116,324, [ Class 70], and 348,101 are referred to.
Patent GB-445226-A (GB)
Title: A process for producing siccatives
IPC: C09F9/00
Filed: 1935-04-12
Abstract: Light coloured driers for paints, varnishes &c. are prepared by precipitating hydroxides of such metals as calcium at temperatures not above room temperature and under non-oxidizing conditions, dispersing the precipitates with dispersing agents, and reacting the dispersed hydroxides, without drying them and at temperatures below 400 DEG  F., with a member of the group consisting of resinic, naphthenic and soap-forming fatty acids and their glycerides.  The hydroxides are obtained in fine colloidal subdivision by the low-temperature precipitation, and their reactivity is retained by excluding air or oxygen during their precipitation and reaction.  For example, low-temperature precipitated calcium hydroxide is dehydrated by kneading with polymerised china wood oil, and the oily paste reacted with rosin at 300--350 DEG  F., giving a resinate of unusually light colour.ALSO:Light coloured driers for paints, varnishes, &c., are prepared by precipitating hydroxides of such metals as calcium, zinc, manganese, cobalt and lead at temperatures not above room temperature and under non-oxidizing conditions, dispersing the precipitates with dispersing agents, and reacting the dispersed hydroxides, without drying them and at temperatures below 400 DEG  F., with a member of the group consisting of resinic, naphthenic and soap-forming fatty acids and their glycerides.  The hydroxides are obtained in fine colloidal subdivision by the low-temperature precipitation, and their reactivity is retained by excluding air or oxygen during their precipitation and reaction. According to examples: (1) Cobalt sulphate solution is precipitated by an alkali solution at room temperature, and the cobalt hydroxide is filter-pressed and washed with air-free water.  The wet paste is kneaded with linseed oil stand oil and vacuum applied.  The oil-hydroxide paste is mixed with a 50 per cent solution of rosin in mineral spirits, and heated to 200 DEG  F., until reaction ceases. (2) Similarly precipitated manganese hydroxide is dehydrated with linseed oil stand oil and slight heating in an atmosphere of carbon dioxide, and reaction between the hydroxide and the oil starts and proceeds at 300--350 DEG  F.  (3) Wet precipitated lead hydroxide is dehydrated by milling at ordinary temperature with thin linseed oil stand oil, followed by application of vacuum. The paste is then heated with additional stand oil to 100--150 DEG  F., at which temperature reaction proceeds.  (4) Low-temperature precipitated calcium hydroxide is dehydrated by kneading with polymerized chinawood oil, and the oily paste reacted with rosin at 300--350 DEG F., giving a resinate of unusually light colour.
Patent GB-282585-A (GB)
Title: Improvements in or relating to pickers for looms with multiple shuttle boxes
IPC: D03D49/36
Filed: 1927-04-28
Abstract: 282,585. Masarnau, F., and Deloustal, R. April 28, 1927. Pickers for multiple shuttle box looms are formed from a piece 1 of leather or other material doubled on itself and moulded to form a cylindrical head 2 having a bore 3 for one picker spindle, an intermediate expansion 6 having an aperture 7 for another picker spindle 8, and a shuttle-engaging part 10 formed by bending an extended portion of one part of the piece 1 over the other part. Holes 11 are formed for securing the picking-strap, and the picker is held together by rivets 16 or copper fasteners 15. Instead of forming the picker from a single thickness of material, it may be formed of a piece of leather &c. composed of superimposed pieces.
Patent GB-1392786-A (GB)
Title: Method of and apparatus for manufacturing a printed circuit armature
IPC: H02K15/04
Filed: 1973-03-08
Abstract: 1392786 Printed circuits INTERNATIONAL BUSINESS MACHINES CORP 8 March 1973 [12 June 1972] 11388/73 Heading H1R [Also in Division H2] A method of forming an armature for an electrical machine from flexible printed circuit cards comprises placing two superimposed cards 50, 52 and 53, 54 on a mandrel 21, the cards having a thermally activated adhesive between them, and being arranged so that free metal tabs from each card are at each end of the mandrel and that the side edges of each card abut to form an axial seam 51, 55, and heating and pressurizing the cards within a pneumaticelectric oven to activate the adhesive. As shown, each card contains two sets of conductors enabling two armatures to be formed simultaneously, the cards being of epoxy fibreglass 52, 53 with photo-etched conductors of copper or aluminium 50, 54. Preferably the abutting edges of the two cards are radially displaced to strengthen the final seamed armature. During heating a copper sleeve 56 may be present to aid heating conformity. The mandrel may have a channel 23 therethrough for passing heating or cooling fluid through the oven. The oven may include a flexible lining which may be pressurized by compressed air to force the cards tightly on to the mandrel. Alternatively the conductors may be formed from the metal layer by stamping, cutting or scribing.
Patent GB-727588-A (GB)
Title: Improvements in and relating to stays for doors and windows
IPC: E05C17/16
Filed: 1952-05-06
Abstract: 727,588. Stays. GRAND, S. E. April, 29, 1953 [May 6, 1952; Oct. 6, 1952; Oct. 13, 1952], Nos. 11391/52, 24957/52 and 25568/52. Class 65(1). A device for limiting the opening of a door or window and for bolting it in the closed position comprises an arm pivoted to the frame, a bolt attached to the door and displaceable, when the door is closed, into coupling relationship with the arm, and latch means on the frame to hold the arm against movement. In the form shown, the arm 3 is pivoted at 4 to lugs 5 on the frame, and its lower end rests between lugs 8 to be engaged by a latch 12 pivoted at 13 ; a bolt 1 horizontally slidable on the door has a reduced neck behind its free end, and the bar 3 has an opening 15 through which the end of the bolt can pass and a slot 14 along which the neck of the bolt can move without being disengageable therefrom. From the position shown the bolt can be retracted to allow the door to be opened without restraint, or the latch 12 can be disengaged from the stay-bar 3 to allow the bar to swing upwards about its pivot 4 as the door opens, the neck of the bolt 1 sliding along the slot 14 and limiting the opening of the door by engaging the end of the slot. In a modification, a telescopic stay is used, the extension of the stay being limited by pin-and-slot engagement between the stay members : in this form the end of the bolt is non-circular and the stay has a corresponding aperture in its lower end, the stay swinging on the neck of the bolt during opening of the door when restraint is required. The stop pin may be fixable in several alternative positions to enable the limited open position of the door to be varied. In a further modification a jointedfolding stay is used, the stay-bar 3 having pivoted at its lower end a second bar which in the closed position of the door is held vertical, for example by a spring at the pivot between the two bars or a spring catch engaging its upper end, and which has a non-circular hole at its upper end to receive the non-circular end of the bolt ; this form of stay may be inverted. Instead of a bolt with a neck, a bolt with a cross-pin in the end, or a flat bolt with a T-head may be used, the aperture in the stay-bar being formed accordingly.
Patent GB-849324-A (GB)
Title: Improvements in or relating to dental handpieces
IPC: A61C1/05
Filed: 1959-04-03
Abstract: 849,324. Dental handpieces. SIEMENSRE1NIGER-WERKE A.G. April 3,1959 [April 5, 1958], No. 11454/59. Class 81(2). [Also in Group XXXIV] A dental handpiece has a head with an air driven tool-carrying turbine 23, carried in open rear and forward ball bearings 18, 19, the rear bearing 18 being remote from the tool-carrying end of the turbine, the arrangement being such that air carrying oil mist passes through the bearings after driving the turbine the air which passes through the rear bearing entering a shallow chamber 29 at the rear of the turbine and an air return channel 36 in the handpiece. Air passing through the forward bearing 19 enters a chamber 30 and passes out of the handpiece in the direction of the end 15a of the tool through a gap 41 and also into the air return channel 36 which extends through the handpiece and a hose to a chamber in a pedestal supporting the apparatus. The pressure in the pedestal chamber may be reduced by a pump. A cover 39 seals the rear chamber 29 from the atmosphere. Air is supplied tangentially to the turbine through a channel (not shown) in the handpiece. The tool is mounted in a sleeve 25 carried by the turbine shaft 22. Water under pressure is supplied through a duct (not shown) in the handpiece and is directed against the end of the tool where it mixes with air directed through the gap 41 to form a spray.
Patent GB-419033-A (GB)
Title: Improvements in or relating to automatic advancing means for reciprocating and percussive tools
IPC: E21B19/084
Filed: 1934-04-17
Abstract: 419,033. Percussive drills. RULE, J., 54, Hughville Street, Camborne, and HOLMAN BROS., Ltd., Camborne, Cornwall. April 17, 1934, No. 11555. [Class 124.] The percussive drill 10 carries a nut 36 in engagement with the feed screw 18. For forward feed recoil is prevented by the nut engaging the screw, but forward movement causes the tight rear portion of the chain 33 to rotate the screw through gearing. For withdrawal the nut 35 is rotated to slacken the rear portion of the chain and tighten the front portion, thus rotating the screw on each rearward blow of the piston. In a modification the screw adjustment 32, 35 is replaced by a fluid pressure cylinder and piston.
Patent GB-494241-A (GB)
Title: Improvements in and relating to the marking and filling of collapsible tubes
IPC: B65B61/26
Filed: 1937-04-22
Abstract: 494,241. Marking and filling collapsable tubes. JOHNSON, B. E., and AKTIEBOLAGET G. AREHNS MEKANISKA VERKSTAD. April 22, 1937, No. 11556. [Classes 66, 94 (i), and 125 (ii)] [Also in Group XXII] Collapsable tubes, before being filled, have the mantle of each tube impressed with a number, serial number, or other mark which cannot be scraped out ; the tubes are preferably formed with an internal irregularity and the marking device has means for engaging the irregularity and turning each tube into a predetermined angular position so that the number &c. is impressed in a definite position relative to a point on the tube. As shown, the tube filling device 51, Fig. 4, is arranged in sequence to the marking device 52 and both devices are arranged above the path of a conveyer 5, Fig. 1, which is moved stepwise with the tubes inserted by the operator in the pockets 4 of the conveyer and the tubes are raised in succession by a camactuated elevator 38 on to a supporting member 13 journalled in the machine bracket 9 and carrying a notched member 45 adapted to engage the irregularity in the tube. The member 13 is oscillated by a pinion 17 and rack 19 actuated from the cam shaft 47 and as the tube is raised the member 45 yieldingly engages the irregularity in the tube and rotates it to a definite position. The member 13 carries an exchangeable elastic portion 14, e.g. of copper-covered rubber, and the die for impressing the mark on the tube co-operates with the member 13 and is carried bv a hub 11 rotatable on a shaft 10 in the bracket 9 ; the hub 11 has an arm 32 carrying a roller 48 held by a spring 34 in contact with the bevelled end of a rod 33 which is actuated from the camshaft 47 to press the figures of the drum 24 of the die against the soft mantle of the tube held on the elastic part 14 of the member 13. The elevator 38 then moves down to allow the impressed tube to drop off the member 13 into the pocket 4 and is then carried on to the filling station 51. The drum 24 of the die is periodically actuated to change the number &c. impressed on the tube by a pin 27 which periodically engages a yoke 26 on the shaft 25 of the drum and is secured to an arm 28 projecting from a hub 12 on the shaft 10 and carrying a bevelled projection 29 which is actuated by the tube caps so that the tubes obtain consecutive serial numbers; a bolt 6 may be placed in certain pockets of the conveyer to engage the projection 29 so that series of tubes will be provided with the same number. The projection 29 may be omitted and the pin 27, for periodically moving the drum 24 of the die, actuated by a cam carried by the member 13 ; in this case, if there is no tube placed on the member the elevator 38 will ascend somewhat higher than usual and on an arm on the shaft 56 will be swung opposite an abutment on the lever 21 which is then prevented from actuating the pinion 17 and cam carried by the member 13. The supporting member 13 may carry the impressing figures &c.
Patent GB-675063-A (GB)
Title: Improvements in the manufacture of flexible tubular containers
IPC: B29C45/26
Filed: 1950-05-09
Abstract: 675,063. Collapsable tubes; stoppers. REGOMA CY., Ltd. May 9, 1950. [Feb. 7, 1950]. No. 11562/50. Classes 66 and 125 (iii). [Also in Group V]. A flexible tubular container injection-moulded (see Group V) from thermoplastic material, e.g. polyethylene, has a long neck comprising a screw-threaded lower part 31 and a plain upper part 31<SP>1</SP> having three holes 23 therein. A centrally-apertured stopper 36 is screwed thereon. By cutting off the plain part along the line A-A a single central aperture is formed in the neck.