baber/WOPTO huggingface dataset:
Patent GB-763626-A (GB)
Title: Improvements relating to the construction of precision balances
IPC: G01G23/02
Filed: 1954-01-29
Abstract: 763,626. Follow-up devices. WHITCROFT, R. J. Jan. 31, 1955 [Jan. 29, 1954], No. 2813/54. Class 40 (1). [Also in Group XVIII] In a follow-up device for arresting- mechanism in a precision weighing balance (see Group XVIII), movement of a knob, in a direction as to release the mechanism, energizes a motor which causes a follow-up rotation of a shaft, thereby releasing the mechanism at a controlled speed. A knob 20, Fig. 1, is mounted on a sleeve 21 carrying a contoured cam 22, the latter coacting with a follower 23 resiliently mounted on a block 24 fast with the shaft 18. Rotation of knob 20 in a clockwise direction, from the unarresting position shown, causes cam 22 to press on a stop 31 on block 24, thereby rotating shaft 18 and a cam 17, to lift a rod 13 causing arrestment of the balance beam. Anti-clockwise movement of knob 22, back to the unarresting position as limited by a stop 32, causes cam 22 to move relative to shaft 18 and follower 23, so that movement of the latter over the cam surface actuates a plunger in block 24, thereby closing switch contacts to energize a synchronous motor 26. The latter causes a follow-up rotation of shaft 18 to the position already assumed by knob 20, after which the contacts are re-opened; rod 13 is lowered in the process to release the balance beam. Alternatively, cam 22 moves with shaft 18, and block 24 with knob 20. In a modification, Fig. 6, a radial arm 33 on sleeve 21 coacts with the plunger 38 of a switch 34 on a plate 35 fast with shaft 18. When arm 33 moves independently to the unarresting position, the plunger is released to close the switch contacts, thereby energizing the motor to cause or followup rotation of shaft 18 and plate 35 to the position of arm 33 at which the plunger is again depressed to open the contacts.
Patent GB-1091728-A (GB)
Title: Mechanism for use in a machine for making repetitive operations on a workpiece
IPC: A41H37/00
Filed: 1966-01-21
Abstract: 1,091,728. Eyeletting. UNITED-CARR Inc. Jan. 21, 1966 [Jan. 25, 1965; Jan. 28, 1965], No. 2869/66. Heading B3U. A device for attaching a two-part fastener to a length of tape comprises means for producing intermittent linear motion of the tape and means for detecting the absence of either of the parts of the fastener at the setting station and stopping the machine before the setting tools 3, 4 operate. The tape feed means comprises a toothed belt 26 which passes over a driving pulley 23, a guide pulley 24 and a jockey pulley 25. The tape 6 rests on the upper surface of the belt which has a high coefficient of friction and is carried under a plate 35 the ribbed under-surface of which has a very low coefficient of friction. A spring-loaded pressure pad 52 bears against the underside of the belt so that the tape 6 is lifted into contact with the plate 35 and is thus held against the belt. The pulley 23 is partially rotated intermittently through a one-way clutch by a crank mechanism comprising a variable-throw crank 65 and a connecting rod 73 which is adjustable in length and is attached to a pin projecting from an arm (70), Fig. 4, keyed to the shaft 29 to which the pulley 23 is secured. In order to prevent retrograde movement of the tape a second oneway clutch 81 is mounted on the shaft 29 and acts in the opposite direction to the driving clutch. The outer part of the second clutch is prevented from rotating by means of a radially projecting anchor arm 82 from which a pin 85 projects, parallel to the shaft 29. The pin runs in a slot and is biased by a spring-loaded plunger against one side of the slot, so that while the pin can move radially to accommodate eccentricity in the assembly, it is prevented from moving angularly. To maintain a constant tension in the tape a drag device 13 is provided which comprises a metal block 14 mounted on a pivot pin 15. Projecting from the block 14 is a stud 18 on which is screwed a further weight 19 and a lock-nut 20. The pressure exerted by the block 14 can be adjusted by moving the weight 19. In order to prevent operation of the setting tools 3 and 4 when either part of the fastener is not present, there is provided at the bottom of each raceway a proximity pick-up (138), Fig. 6 (not shown). The pick-up is connected to a switch which has normally-closed contacts, which are opened when a fastener part is present above the pick-up. If the contacts fail to open the setting device is stopped, by de-energization of a solenoid-operated clutch in the drive mechanism. In series with the switches of the proximity pick-ups is another switch (176), Figs. 7 and 8 (not shown) which is operated by a cam (179) on the drive shaft of the variable-throw crank 65. This switch is closed only during the time when a fastener part should be present at each proximity pickup, since the pick-ups cannot distinguish between a fastener-part and the feed-fingers which push the fastener-parts into position.
Patent GB-553259-A (GB)
Title: Apparatus for automatically operating stand-pipe valves
IPC: C10B27/06
Filed: 1942-03-09
Abstract: 553,259. Dust, confining in industrial systems. DRUMMOND PATENTS (HOLDINGS), Ltd., and DRUMMOND, R. M. March 9, 1942, No. 3057. [Class 8 (ii)] [Also in Groups XII and XXIX] Means for actuating stand-pipe valves particularly used in connection with the extraction of dust liberated into the air during the discharge into a container of coke from coke ovens or retorts consists of a yielding spring pressed plate d mounted on a suction pipe x<SP>1</SP> attached to a truck x which receives the discharged coke and is provided with two cam surfaces d<SP>1</SP> which serve to open and allow to close the valve c in the section stand-pipe b when the truck x is brought to and removed from the coke discharge position opposite to the stand-pipe. The valve c is opened when one of the cams d<SP>1</SP> engages with a spindle g<SP>1</SP> which is connected through gearing g with the valve. The valve is closed by a counterweight h under control of the other cam d<SP>1</SP> as the truck is moved away from the stand-pipe.
Patent GB-1398243-A (GB)
Title: Preparation of indoline derivatives
IPC: C07D209/34
Filed: 1973-01-20
Abstract: 1398243 1 - Phenylindolinealkyl amines PFIZER Ltd 16 Jan 1974 [20 Jan 1973] 3067/73 Heading C2C Indolines of formula in which R<SP>1</SP> and R<SP>2</SP> are each hydrogen or a lower alkyl group and R<SP>3</SP> is a C 1-4  alkyl group, are prepared by converting a 3-alkyl-1-phenyl-2- indolinone of the Formula II into an amide of Formula IV either by reaction of the 3-alkyl-1-phenyl-2- indolinone of the Formula (II) with a C 1-4  alkyl ester of acrylic acid in the presence of a base to form the corresponding 3-(2-alkoxycarbonylethyl) compound, which is then converted to the amide of the Formula (IV) or directly by reaction of the 3-alkyl-1-phenyl-2-indolinone of the Formula (II) with an acrylic amide of the formula CH 2 =CH.CONR<SP>1</SP>R<SP>2</SP> in the presence of a base, and the amide is then reduced and a compound of Formula (I) is isolated as the product.
Patent GB-657353-A (GB)
Title: Improved ice-making tray
IPC: F25C1/24
Filed: 1949-02-04
Abstract: 657,353. Ice-making. GENERAL MOTORS CORPORATION. Feb. 4, 1949, No. 3073. Convention date, Feb. 14, 1948. [Class 29] A grid for a domestic ice tray 11 comprises a central longitudinal wall 21 and inclined transverse walls 22 defining open topped spaces 40 having bottoms 41 and spaces 25 closed by top members 23 so that, after partial freezing, a body of unfrozen liquid is trapped in the spaces 25 and in freezing expands to stress the grid and tray and then break the ice-bonds, the top members 23 being located below the tray walls so as to contact the water at its normal level. The tray has inclined walls and the bottom is inclined at the ends 15 to allow flexing of the tray by downward pressure. One of the ends or both of the ends of wall 21 is fitted with a handle 49. The tray may be made of metal such as aluminium and the grid may be moulded in a plastic material such as polystyrene and may have a water-repellent surface.
Patent GB-1136391-A (GB)
Title: Improvements relating to brake mechanism
Inventor: TOWNSEND DAVID JAMES
IPC: B60T11/06
Filed: 1968-04-09
Abstract: 1,136,391. Brake transmitting mechanism. AUTOSET (PRODUCTION) Ltd. 9 April, 1968, No. 3077/65. Heading F2E. Transmitting mechanism for distributing braking force from a pedal to brakes on opposite sides of a vehicle comprises a pair of actuating plates welded to a web 13 adapted to be connected to the pedal, a pin 15 carried by the plates 9 and slidable in slots 14 in a pair of fixed plates 10, 11 to which are secured a pair of transverse plates 21, and a toggle assembly formed by pairs of plates 16, 17 extending from the pin 15 to pivotal end connections on a pair of levers 18, 19 which are centrally pivoted on pins 20 carried by the transverse plates 21 and whose opposite ends are connected to the respective brakes. Apertures 12 in the plates 10, 11 are provided for fixing the latter to the vehicle body.
Patent GB-288398-A (GB)
Title: An improved power press
IPC: B30B1/10
Filed: 1927-02-03
Abstract: 288,398. Boorne, W. H. Feb. 3, 1927. Presses, mechanical.-Relates to power presses of the type wherein the ram plate is carried by oppositely disposed vertical toggles connected at their knees to horizontal toggles actuated by a vertical reciprocatory element, and consists in providing sets of toggles extending across the ram plate with the innermost toggles connected at their knees to the other toggles of their set by links; also the provision of differential gear for actuating the reciprocatory element. As shown, the ram plate is suspended on sets of toggles 17 hung from pivots 18 and having the knees of the innermost toggles connected to the others by links and also connected to horizontal toggles 16, the joints of which are pivotally connected to a vertical threaded shaft 10. A shaft 1 drives through a worm 3 a gear 4 carrying bevel pinions 7 engaging a crown wheel 5 fixed to a sleeve 8 splined to the shaft 10 and a crown wheel 6 fixed to a threaded sleeve 11. A beam 21 is connected at its upper and lower ends to arms carrying dogs 14, adapted to 'engage respectively with recesses 12 and 13 in the sleeves 8 and 11 whereby the sleeve 8 may be held to cause descent of the shaft 10 or the sleeve 11 held for its ascent, or both may be disengaged to give a dwell. The beam 21 is operated by a hand or foot lever or by automatic timing mechanism comprising an arm 31, Fig. 2, connected at one end to dogs 32 on the beam and furnished at the other with a roller 30 engaging a stepped cam 29 having surfaces 34 - - 37 corresponding to pressure, dwell, lift and dwell respectively. Step-by-step movement is imparted to the cam by a spring pawl 27 which is rocked by interchangeable dogs 23, 24, 25 on a disc 22 integral with the gear 4, the pawl being shifted by a link 33 connected to the arm 31 to bring a projection 26 into range of the appropriate dog. For large presses the shafts 10 are duplicated and are operated by threaded sleeves turned in one direction or the other by a rack controlled by timing-gear.
Patent GB-1345637-A (GB)
Title: Purification of perchloromethyl mercaptan
IPC: C07C313/08
Filed: 1972-01-24
Abstract: 1345637 Purification of CCl 3 .SH STAUFFER CHEMICAL CO 24 Jan 1972 [22 Feb 1971] 3179/72 Heading C2C Perchloromethyl mercaptan is purified by mixing thoroughly with water for a period of time sufficient to hydrolyse the sulphur monochloride (S 2 Cl 2 ) impurity but short enough to eliminate any significant hydrolysis (i.e. >5%) of the perchloromethyl mercaptan and thereafter separating from the mixture, by filtration, the purified product. The mixing time is preferably between 1 and 3 minutes using a volume ratio of perchloromethyl mercaptan to water of between 1À0 : 0À5 and 1À0 : 4À0. The purification is preferably carried out at 10 to 50 C. using perchloromethyl mercaptan of 85 to 96% purity.
Patent GB-178583-A (GB)
Title: Apparatus for coating the surface of cinematograph films
IPC: G03C11/08
Filed: 1921-01-26
Abstract: 178,583. Ott, A. F. M. Jan. 26, 1921. Coating materials in long lengths. -Apparatus for applying a protective coating to kinematographic films comprises coating-apparatus mounted on a swivelling plate b and a rotary drum n comprising two discs or wheels joined by rods round the peripherv. The coating-material is applied by a pad supplied from a tank h by a valved pipe, and compressible, to regulate the flow, by thumb-screws. The film passes from a reel d under or over guide rollers f, under the pad, and thence. to the drum n on which it is wound spirally.
Patent GB-285010-A (GB)
Title: Improvements in apparatus for recording the rolling of ships
IPC: B63B39/12
Filed: 1928-02-03
Abstract: 285,010. Braibant, N. Feb. 8, 1927, [Convention date]. Rolling, indicating amount of.-In a device for indicating the rolling of ships of the kind in which a stylus carried by a pendulum records on a graduated record sheet moved at a uniform speed, the graduations on the sheets are modified to correct the error due to inertia which is inter. alia a function of the angle or roll. The top half of the figure show an ordinary record sheet and the lower half one in which the correction has been effected.
Patent GB-914360-A (GB)
Title: Improvements in or relating to apparatus for the rolling of tea leaf or the like
IPC: A23F3/12
Filed: 1960-02-01
Abstract: 914,360. Tea-rolling and cutting. BRITANNIA ENGINEERING CO. Ltd., and HOADLEY, L. Dec. 29, 1960 [Feb. 1, 1960], No. 3519/60. Class 129. Tea or the like is passed through a drum 7, rotatable at variable speeds in either direction within which is an independently rotatable shaft 17, the shaft and internal surface of the drum both having spirals, grooves, teeth, serrations or the like and the ends of the shaft protruding from the drum being carried by arms 20 vertically adjustable by a handoperated tensioning spring 25 and a set-screw or the like. As shown, the drum 7 is mounted in bearings 6 on castings 1 and 2 which have respectively an inlet 3 with a rotary feed 14 and an outlet 4 with a lip 5. The drum, which may be tapered and may be circular or multisided, may have an internal surface of removable alloy metal sleeves. The outer surface of the drum has cooling fins 12 or a water-jacket and an archimedian screw 24 is mounted on shaft 17. Below the lip 5 of opening 4, which has a hand-operated shutter 29, there is a drum 31 on to which cutters and choppers 32 can be made to operate through a linkage 33. Rolled leaf from drum 39 is received on conveyer 34. Cutting may take place before rolling. The Provisional Specification describes a cylindrical drum with a plate to deflect the tea towards the archimedian screw.
Patent GB-926993-A (GB)
Title: Turf cutting machine
IPC: E21C49/02
Filed: 1960-02-02
Abstract: 926,993. Turf cutters. F. CHAPMAN, and C. CHAPMAN. May 17, 1960 [Feb. 2, 1960], No. 3573/60. Class 6(2). A turf cutting machine has a single channelshaped cutter 5 mounted transversely below the chassis of the machine and adapted to oscillate longitudinally of the machine, the cutter having three chisel-blade cutting edges, two vertical and one horizontal. The cutter 5 is bolted to pivoted arms 6 connected to rocking arms 37, 39 which are driven by V-belt and pulley drive 32, 33 and an eccentric cam mechanism 35 from an engine 2.
Patent GB-157477-A (GB)
Title: Improved means for controlling the flow of electrons in electric discharge devices
IPC: H03B13/00
Filed: 1919-02-14
Abstract: 157,477. Marconi's Wireless Telegraph Co., Ltd., (Berry, E.). Feb. 14, 1919. Vacuum tubes.-In a receiver for wireless signals two control electrodes D are mounted in an evacuated tube, one on each side of the electron path from a cathode B to two anodes C, so that the electron stream is deflected to the anodes alternately, a telephone receiver G being connected between the anodes. The cathode may consist, as shown, of an incandescent filament, or of a concave mirror silvered with an amalgam of potassium and silver, and illuminated by a flame or other light. A circuit, consisting of inductances H and a variable condenser I, is connected between the anodes and the cathode, and is tuned to the same frequency as the circuit E receiving the incoming signals. In a modified arrangement for use with audio- and radio-frequencies, the anode-cathode circuit C, B is coupled through a transformer with a circuit connecting one electrode D and the cathode B. Reference has been directed by the Comptroller to Specification 126,019.
Patent GB-764371-A (GB)
Title: Improvements in or relating to devices for recording telegraphic impulses
IPC: H04L13/18
Filed: 1955-02-08
Abstract: 764,371. Telegraphic recorders. SIEMENS & HALSKE AKT.-GES. Feb. 8, 1955 [Feb. 16, 1954], No. 3738/55. Class 40 (3). A device for recording telegraphic impulses, particularly in copying-telegraphy, comprises a ball or wheel rotatably mounted in the end of an electromagnetically-operated printing lever, the ball or wheel is simultaneously inked and driven by bearing continuously against a revolving elastic ink carrier in the operated and unoperated positions of the lever. The recording unit is carried on a plate 3 rotatably mounted on a shaft 4 and is traversed axially relatively to a rotatable drum 1 supporting the paper 2. The plate 3, biased towards the drum by a spring 5 and adjustably positioned by a threaded screw 6, carries an electromagnet 15 operating the pivoted lever 17 carrying the ball 20 in a circular recess associated with flanged housing rings 21, 22. A shaft 7 carrying a friction wheel 8 engaging the drum 1 is connected to a roller 9 driving an elastic band 12 supported by a second roller 11 and inked by a wheel 14 carried by a toothed wheel 13 meshing with a gear wheel 10 on the shaft 7. The ball 20 is engaged by the band 12 in the operated and unoperated positions of the lever 17 which together with the rings 21, 22 is formed with a slot 23 to provide on the ball 20 a circumferential zone from which the marking ink is not removed during its rotation. The wheel 10 may be driven by a small motor and the friction wheel 8 omitted. In a further modification, the band 12 is replaced by an elastic inking wheel.
Patent GB-1461942-A (GB)
Title: Open-end spinning unit
IPC: D01H4/12
Filed: 1974-01-28
Abstract: 1461942 Open end spinner: braking TOYODA JIDOSHOKKI SEISAKUSHO KK and DAIWA BOSEKI KK 28 Jan 1974 [5 Feb 1973] 03840/74 Heading DID  In an open end spinner a rotor spindle or a spring-biased brake is positively displaced to separate the spindle from a driving belt and to bring the spindle and brake into contact, the displacement being limited by a stop. Spindle 6, Fig. 4 is supported by resilient member 5 in housing 4. To brake the spindle a body, covering the open rotor end and including a fibre supply device, is pivoted on frame 16 and engages housing hook 15 to pivot the housing about pivot 7 against the bias of spring 8 so that spindle 6 engages brake shoe 18 while being removed from belt 2. Housing pivoting is limited by stop 24. The shoe is mounted on plate spring 17, Fig. 6, carried by pins 21 slidable in grooves 22. The deflection of spring 17 is said to prevent damage to labyrinth seal 14. The brake shoe may be mounted on a rigidly mounted plate spring or on spring biased rod 29, Fig. 9. Alternatively, Fig. 12, a lever is pivoted to engage shoe 19 with resiliently fixed spindle 6, the arm carrying belt lifting rollers 35 and supporting the shoe as shown in Fig. 6. Lever pivoting is limited by a stop.
Patent GB-1247232-A (GB)
Title: Improvements in or relating to the production of hot rolled strips
IPC: B21B1/26
Filed: 1969-01-23
Abstract: 1,247,232. Rolling; making metal strip. SUMITOMO METAL INDUSTRIES Ltd. 23 Jan., 1969 [24 Jan., 1968], No. 3850/69. Headings B3A and B3M. Hot-rolled strip after passing hot finishing stands 1 and cooling sprays 3, and before being coiled at 4, is rolled in one or more additional stands 5. The strip is suitably rolled in the stands 5 at between 500‹ and 600‹ C. with a reduction of greater than 20%. To obtain a product having deep drawability, the strip is then either pickled, recrystallized and annealed, or is decarburizing annealed, cold rolled, annealed and temper rolled. The stands 5 can be prestressed and can incorporate tungsten carbide rolls.
Patent GB-905784-A (GB)
Title: Electric switch and enclosure therefor
IPC: H01H9/22
Filed: 1960-02-03
Abstract: 905,784. Snap-action switches; switch cases; locking switches; earthing parts of switches. FEDERAL PACIFIC ELECTRIC CO. Feb. 3, 1960 [Feb. 19, 1959], No. 3873/60. Class 38 (5). Electrical switching mechanism is contained within an enclosure having a door retained closed by an internal latch released by the switching mechanism through a yieldable connection so that the switch may be opened although the latch may be jammed. Switch cases.-A switch-box 10, containing two snap-action switches 12, 12<SP>1</SP>, is closed by two doors 16, each of which has an aperture 34 through which projects an operating handle 60 mounted on the switch cover 36. Each door 16 is retained closed by a spring-loaded catch 106 (Fig. 3) pivoted on a wall of the box 10 and co-operating with a fixed member 110 on the door 16. Opening the switch 12 rotates a contact-carrying shaft 50 and hence a camplate 160 to tilt a lever 140, which is held by a spring 152 against shoulders 138, 138<SP>1</SP> on the catch 106. The catch is thus tilted and releases the door 16. Should the catch 106 become fixed in the latched position, the switch may still be opened as the lever 140 will then rise against spring 152 and turn about its end 142 on shoulder 138<SP>1</SP> as a fulcrum. The door 16 may be opened with the switch in the closed position by inserting a screwdriver or like tool T in a slot 166 in the door to release the catch 106. Each door 16 is additionally latched by a spring-biased catch 170 pivoted on a side wall of the box 10 and which may be locked in the closed position by passing a padlock through the aperture 188 (Fig. 2, not shown). When both catches 106 and 170 have been released, a spring-loaded plunger 92 rises to lift the door 16 and interpose a member 94 in the path of a slider 72 provided in each switch handle 60, thus preventing operation of the switch when the door is open. For test purposes, the plunger 92 may be depressed manually to permit operation of the switch. In order that the switch handle 60 may not foul the door 16, in each limiting position a switch-operating member 61 is arranged to function as a stop member by striking the switch casing. In addition, the hub 68 of the handle rotates within a shaped slot in the cover-plate 82 which thus also acts to twist the movement of the handle. Locking switches.-The spring-loaded slider 72, in either the open or closed switch position, can be pushed inwards, a lug 72a then engaging a slot in the cover-plate 82 to lock the switch. The slider 72 is retained in the locking position by one or more padlocks through apertures 74 and slots 70. Earthing parts of switches.-Each handle 60, which is metallic, is well insulated from live parts of the switch, but for maximum safety a brush in the form of a helical spring connects the hub 68 of the handle 60 to the metallic cover-plate 82. A spring 206 (Fig. 1), lying in a groove in the cover-plate, makes connection with the plunger member 92 and hence with the earthed switch-box 10 when the box is closed.