baber/WOPTO huggingface dataset:
Patent GB-491897-A (GB)
Title: Improvements in or relating to apparatus for degreasing nonabsorbent articles by means of volatile solvents
IPC: C23G5/04
Filed: 1937-03-12
Abstract: <PICT:0491897/III/1> In de-greasing non-absorbent articles by apparatus of the type described in Specifications 456,821 and 466,207, in which a lower evaporating zone and an upper condensing zone for the solvent vapour are provided, two cooling water channels are provided, one near the lid and the other near the bottom of the condensing zone to minimize convection currents.  In the apparatus shown, articles are treated with a grease solvent such as trichlorethylene in the compartment 36.  The articles, with solvent still adhering, are then placed in the zone 2 which is surrounded by an oil jacket 4 heated by steam pipes 6.  Solvent which drips off flows into the collector 9, cooled by a water jacket 12.  Vaporized solvent escapes from the hot zone 2 into the condensing zone 3, the zones being separated by a nonconducting asbestos gasket 16.  The zone 3 is closed by a lid 32 operated by a handle 35 and bell-crank lever 33, 34, and is cooled by water pipes 19.  Condensed solvent runs into the collector 9 via the trough 21 and pipe 22.  Water circulating in the cooling coils 19 is also circulated in the channels 24, 23, near the lid and the bottom of the condensing zone respectively, by pipes 25, 26, to prevent convection currents occurring at these points.
Patent GB-398865-A (GB)
Title: Improvements in or relating to tractor-trailer couplings
IPC: B60D1/26
Filed: 1932-03-14
Abstract: 398,865. Transmitting-mechanism for brakes. KARRIER MOTORS, Ltd., CLAYTON, R. F., AVERNS, R. DEAN-, and MEEK, P., Karrier Works, St. Thomas' Road, Huddersfield. March 14, 1932, Nos. 7467 and 24994. [Class 103 (i).] A tractor-trailer coupling device comprises a drawbar 10 pivoted to the trailer turntable and provided with a pointed nose 17 adapted, as the tractor is backed into position, to ride up a ramp 16 thereon to encounter and pass between a pair of plate members 4, 5, slidably mounted on pillars on the tractor frame and pressed together by springs so as to engage undercut grooves 19 in the drawbar to effect tractive connection, uncoupling being effected by pressing the plates apart by means of a pair of cams 21 controlled from the driver's seat. A gap between the plates provides for entry of the nosepiece 17, the undercut grooves 19 enabling traction to be effected by either pull or push. The drawbar 10, which may be formed in two portions with a double acting spring buffer 37<1> interposed, is pivotally mounted on a shaft 11 extending between brackets 12 depending from the trailer turntable 13 and is normally supported in position to engage the ramp by a stirrup attachment 14 resting on an adjustable stop 15. Transmitting mechanism bringing the trailer brakes under the control of the tractor driver, as the vehicles are coupled up, comprises a rod 27 passing axially through the drawbar and coupled by a link 31 to an angle lever 32 adapted to raise a rod 321 passing through the pivot pin of the trailer turntable and connected to the brakes in known manner. The brakes are applied when the front end of the rod 27 is pressed by a lever 28 on the tractor operable through a connection 30 extending from the usual tractor brake actuating control in the driver's cab. When the vehicles are uncoupled a spring- pressed detent 35 housed in the drawbar drops into engagement with ratchet teeth 36 on the rod 27 to hold the trailer brakes " on," the detent being held out of action whilst the vehicles are coupled by a lever 34, the front end of which engages a projecting portion 4<1> on the slidable coupling plate 4. The first Provisional Specification describes a slightly modified arrangement wherein the plates 4, 5 are carried on pins extending upwards from an arched support with springs on the pins above and below the plates to press them together.
Patent GB-1177923-A (GB)
Title: Rolling Mills
Inventor: HOWARD DAVID ROBERT
IPC: B21B37/66
Filed: 1966-02-21
Abstract: 1,177,923. Rolling. DAVY & UNITED ENG. CO. Ltd. 21 Feb., 1967 [21 Feb., 1966], No. 7483/66. Heading B3M. A rolling mill has at least one roll in driving relation with a signal generator producing a signal representing the eccentricity or ovality of the roll, the signal being, used to control the roll-gap setting in a sense to diminish the effect of eccentricity or ovality on material which is rolled. Sine wave generators of adjustable phase and amplitude are connected to the rolls 12 and 14 of the mill, the summed output of the generators acting on a solenoid-operated piston 23 on each side of the mill. The pistons control hydraulic capsules 21 to vary the roll gap. The adjustment of the generators is: made manually or automatically using a circuit, Fig. 2, which is operated when the mill is run with the work rolls 12 in contact. Where the eccentricity or ovality of a roll is likely to be the sameat bothends, only one generator for the roll need be supplied and it may be necessary to provide a compensating circuit for the backing rolls only. The chambers 21 may be replaced by motor-driven screwdowns or wedges.
Patent GB-512493-A (GB)
Title: Improvements in and appertaining to trolley wire fittings for supporting overhead electric cables
IPC: B60M1/20
Filed: 1938-03-10
Abstract: 512,493. Suspending conductors. WISEMAN, A. and SIMMONS, W. March 10, 1938, No. 7509. [Class 36] In a trolley wire suspension fitting of the kind wherein the trolley wire is carried by an insulator mounted on a body 3 which is connected to a suspension wire by arm 2 angularly adjustable about its point of attachment to the body to enable the relative vertical positions of the suspension wire and the trolley wire to be varied, the arm and body are held together by a screw 5 and are locked in their adjusted positions by mating teeth or serrations 4 formed on the abutting faces of the two parts. The abutting faces of the body and arm are preferably arranged in the central longitudinal plane of the fitting. In the construction shown, the end of the body remote from the arm 2 is formed with a lug 9 which is bolted to a lug 8 provided on a socket 7 encircling the end of a wood or other insulating coupling member 6 for connecting two similar trolley wire suspension fittings.
Patent GB-575887-A (GB)
Title: Improvements in gas blast high voltage electric circuit breakers
IPC: H01H33/70
Filed: 1944-04-22
Abstract: 575,887. Gas-blast circuit-breakers. FERGUSON, PAILIN, Ltd., GRUNEWALD, F., and DAKIN, E. M. April 22, 1944, No. 7521. [Class 38 (v)] A gas-blast high-voltage circuit-breaker has nozzle contacts 4, 5 disposed in an arcing chamber 2 formed by insulating member 3. The nozzles 4, 5 which, in this embodiment, are respectively movable and fixed, are each of the convergent-divergent type. The convergent parts 32, 35 have a length l not less than, and preferably more than, the throat diameter d, and an inlet diameter D, the maximum separation of the nozzles being equal to a=D/2+ up to 15 per cent. for vena contracta. The flow areas across the nozzle entrances are so much larger than the throat areas, that the pressure in the entrances is at least 40 per cent. higher than at the throat, while the gas speed is at least 25 per cent. of that at the throat. Contact 4 has a flange 8 which is moved in cylinder 9, against spring 11, when the gas blast is supplied from cylinder 19. An isolating switch 23, pivotally connected at 24 to the main switch and in series therewith, is opened by a rotatable shaft 28, connected to the pressure responsive mechanism 29 when the arc is quenched. Contacts 4, 5 with raised non- oxidising surfaces 38, 39 have electrostatic stress distributors 40, 41 respectively. The gasblast moves the contact 4, when the pressure in chamber 2 reaches 30 per cent. of its maximum value, thereby stretching the arc which settles on the divergent parts 34, 37 of the nozzles, or on auxiliary electrodes 47, 48 if provided. In Fig. 3 (not shown), the flange 40 on contact 4 is replaced by a surrounding fixed electrode shaped to form a gas scoop at its end. In addition, condenser layers are embedded in the member 3 which has a protecting metal cylinder on its inner surface. In Fig. 4 (not shown), both nozzles are movable in stationary surrounding metal cylinders, each of which carries a short insulating extension in its end. A resistance may be connected across one of the interrupting gaps in any of the above embodiments. Specifications 26694/01, 7736/02, 13852/02, [all in Class 38], and 278,764, [Class 38 (v)], are referred to.
Patent GB-311499-A (GB)
Title: Improvements in or relating to mechanical coal-loading shovels for use in mines
IPC: E21F13/06
Filed: 1928-03-12
Abstract: 311,499. Kaye, R., Pickles, H. W., Crossland, J., and Briggs, D. H. C. March 12, 1928. Hauling on anchored cable. - A mechanical shovel for loading coal in mines, of the type adapted for hauling along an anchored cable 5 is actuated by ropes 6, 10 from a remote winding engine so as to haul itself along the anchored cable to the loading position and to be hauled back to the discharging position. The shovel is provided with a rear compartment containing two winding-drums 3, 4 geared together through clutch mechanism. Normally the clutch is engaged so that the drum 3 carrying the anchored cable 5 is driven bv the drum 4 when the latter is actuated by winding in the rope 6 at a distant point. The second rope 10 of the distant winding-engine is attached directly to the shovel for hauling it back, the drum 3 now driving the drum 4 to wind in the rope 6. The arms 3, 4 may be . disconnected by throwing out the clutch in order to alter the amount of rope wound on each.
Patent GB-540796-A (GB)
Title: An automatic screw-thread-cutting machine
IPC: B23G1/04
Filed: 1940-04-29
Abstract: 540,796. Lathes. ADCOCK, G., and SHIPLEY, H. April 29, 1940, No. 7605. [Class 83 (iii)] An automatic screw thread cutting lathe particularly for cutting threads in nuts has means for giving repeated relative traverses between tool and work, the tool being withdrawn laterally from the cut at the end of a cutting traverse, returned idly and restored to take a deeper cut at the beginning of the succeeding cutting traverse. The work holder 10 is mounted on a lead screw 11 running in a nut 12 secured to the fixed headstock 13, the lead screw being driven from a cross shaft 15, worm gearing and a reversing electric motor or reversing gearing (not shown) to reciprocate the work past the tool 24. The shaft 15 also drives a countershaft 17 which through a friction clutch 18 drives an oscillating feed cam 20 actuating the tool holder 22. At the end of each cutting traverse the cam is rotated to withdraw the tool for the idle return movement of the work and at the end of the return the cam is rotated in the reverse direction through a larger angle to apply the cut. The shaft 19 carries a disc 27 fitted with a pin 28 which on reversal at the end of the cutting traverse is moved to engage a fixed stop 25, the clutch 18 then slipping. At the end of the idle stroke, reversal of shaft 19, causes a second pin 29 on the disc 27 to engage a movable stop 26 after which the clutch again slips. The stop 26 is carried on a pair of loose oppositely-toothed ratchet wheels 30 operated by a pawl 33 on a carrier 31 rocked at the end of each idle stroke by a pivoted cam 36 carried by a sliding part 38. A ramp 35 on the carrier disengages the locking pawl 34 to permit this movement. The upper slide 22b carrying the tool bar is adjustable by a screw 40 on a lower slide 22a, both slides being carried by a lognitudinally-adjustable member. The cam 20 maybe shaped to apply heavy cuts for the first few strokes and thereafter progressively lighter cuts. Indexing mechanism may be provided for cutting multi-start threads. A counting device 43 may be arranged to stop the machine after a predetermined number of traverses.
Patent GB-526256-A (GB)
Title: Improvements in bed motions particularly for printing presses
IPC: B41F3/58
Filed: 1939-03-10
Abstract: 526,256. Printing - machines. AMERICAN TYPE FOUNDERS. Inc. March 10, 1939, No. 7865. Convention date, July 7, 1938. [Class 100 (ii)] Bed-reciprocating apparatus. A bed-reciprocating apparatus which is especially applicable to the beds of cylinder printing-machines of the continuous revolution type is constructed to produce a substantially constant velocity of the bed during a considerable portion of its cycle of movement, the movement being obtained by a crank-pin or other intermediate driving element carried by a planet gear operating in conjunction with a sun gear which is oscillated during each cycle of operations in such a manner as to cause the crank-pin to impart a more nearly uniform speed to the bed for a longer period of time than would be the case if a stationary sun wheel were employed. In Fig. 1 the printing-bed 21 coacts with a cylinder 11 driven by gearing 24, 20 from a uniformly rotating shaft 22 which also reciprocates the bed by means of a reciprocating cross head 60 mounted on guides 62, 64 and fitted with a gear 70 engaging a fixed rack 72 and a rack 16 on the bed which reciprocates at twice the speed of the crosshead. The crosshead is reciprocated by a crank-pin 35 carried by a planet gear 36, which is mounted on a crank 30 secured to the driving-shaft 22, and engages a freely mounted sun-wheel 40, the diameter of which is twice that of the planet gear. The sunwheel 40 is oscillated about the shaft 22 by means of a crank-pin on a gear 50, Fig. 2, driven by a gear 48 in the shaft 22, the crank-pin engaging a slotted arm 45 of a member 42 secured to the sun-wheel. The ratio of the gear 48 to 50 is 3 to 1, so that the wheel 40 makes three oscillations for each rotation of the shaft 22. The crank-pin 35 would move in the path of a prolateepitrochoid. but the oscillation of the sun-gear modifies the path in such away that the crosshead moves at a substantially constant velocity for aperiod corresponding to about 68 per cent. of its motion in each direction of reciprocation. In amodification the planet 36 engages a sun-wheel with internal gear-teeth, the gear-ratio being 4 to 1. Specifications 476.230 and 526,257 are referred to.
Patent GB-601606-A (GB)
Title: Improvements relating to methods of packaging liquid chemical substances
IPC: B65B3/00
Filed: 1945-03-28
Abstract: Liquid chemical substances are packaged by introducing an accurately measured quantity of the liquid into an ampoule made of paraffin wax and having a reduced neck, the diameter (e.g. about 9 1/2 mm. internal diameter) of which is less than that of the body of the ampoule yet sufficiently large to permit quantitative discharge of the contents, and sealing the ampoule with paraffin wax.  To prepare a standard solution from a liquid concentrate contained in the ampoule, the latter is punctured, e.g. by the application of heat, the contents transferred to a volumetric flask and diluted to the required normality.  The Specification as open to inspection under Sect. 91 comprises also a container, for holding an accurately measured quantity of a substance that does not react with glass, comprising a hollow body of glass or similar material and a continuing neck which may be externally screw-threaded, and a closure adapted to be punctured.  The closure may be constructed of a wax disc located on and covering the open end of the neck, after which a slightly warmed cap, internally screw-threaded and preferably having a circular hole in its end wall, is screwed upon the threaded neck. Rubber rings or other sealing material may additionally be used. After cooling an additional layer or coating of wax may be applied to wholly or partly fill the hole in the cap.  In addition, the wax layer or coating may exteriorly cover the cap and extend beyond over the contiguous surface of the neck.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1388015-A (GB)
Title: Process for the biological treatment of waste material
IPC: C05F11/00
Filed: 1972-02-21
Abstract: 1388015 Biological treatment BANQUE POUR L'EXPLANSION INDUSTRIELLE 21 Feb 1972 [19 Feb 1971] 7950/72 Heading ClC A process for biologically treating waste material comprises contacting the waste material with a composition comprising an absorbent substance which is calcium carbonate, magnesium metasilicate, tale, silica or infusorial earth and 10-40% by wt. of an oxygenating agent which is a metal oxide and/or alkali metal peroxide or perborate and allowing the waste material to ferment. The composition may also comprise stearic, palmitic, adipic and oleic acids, maize liquor, malt residues, molasses and compounds containing NH, NH 2  or NH 4  groups, e.g. urea and ammonium phosphate, nitrate and sulphate. The process may be used to treat acidic, basic or neutral wastes, e.g. a paper mill waste water or petroleum on water. During the petroleum treating process the petroleum may be caused to sink.
Patent GB-578149-A (GB)
Title: Improvements in or relating to electric signalling or controlling devices
Filed: 1938-03-15
Abstract: 578,149. Electric signalling and control systems. VICKERS-ARMSTRONGS, Ltd., and WHISTLECROFT, A. W. March 15, 1938, No. 7998. [Class 40 (i)] [Also in Group XXI] A signalling or control system for correlating the position of an observation device and a gun or gun turret comprises a double-ring cam member moving with the observation device and selectively controlling two electric circuits in accordance with the direction of movement whereby an indication is given of the required movement of the gun or gun turret or automatic control is initiated, the circuits being opened when the gun or gun turret has been moved to the correlating position. Fig. 1 shows a manually controlled follow-up switch comprising a double ring cam 10 rotatable by an observation device such as a periscope relatively to a switch 11 mounted on a gun turret which is under the control of the gunner. The switch comprises plungers 12, 13 which co-operate respectively with the cam surfaces and control spring contacts 15, 16 connected to lamps. When the observation device and the gun are in alignment the cam at position 10a opens both contacts and extinguishes both lamps. The 180‹ position is signalled by the illumination of both lamps by the cam at position 10b any other position being indicated by operation of one or other of the lamps. In a modification, a differential coil instrument is used instead of the lamps and a lamp is also provided to indicate the 180‹ position. Indication of elevation of the gun is given by the apparatus shown in Fig. 6 wherein an angle setting device 33 controlled by the gunner operates a switch 35 relatively to a slide 29 controlled by movements of the gun in elevation. The switch is provided with a projection 37 which, when the gun is elevated correctly, cooperates with a notch 30 on the slide and allows the switch to open and extinguish a signalling lamp. In the complete automatic control system shown in Fig. 10, a double ring cam 50 carried by the periscope 49 controls the switch box 51 carried by the turret to operate one or other of relays 54 to cause motor 56 to rotate the turret 47 to a position corresponding to that of the periscope. Elevation control is effected by a switch box 53 carried by the periscope and cooperating with a pivoted double cam 52 to control the elevating motor 60, the cam being moved to the open circuit position by link 66 connected to the elevating gear.
Patent GB-1384000-A (GB)
Title: Electronic switching devices
IPC: H01L45/00
Filed: 1972-02-22
Abstract: 1384000 Ion-impermeable glass compositions INNOTECH CORP 22 Feb 1972 [9 March 1971] 8025/72 Heading C1M [Also in Division H1] The invention is concerned with glass electronic switching devices (see Division H1), and the Specification discloses the following particular compositions, all of which are said to be electrically insulating and ion impermeable, and may be deposited on metal or semi-conductor surface by one or more of sedimentation, r.f. sputtering or centrifuging techniques. All ratios are mole percentages. (i) SiO 2  3-12 (pref. 6À6); ZnO 45-65 (pref. 55À2); PbO 0-6 (pref. 2À7); B 2 O 3  25-40 (pref. 34À5); Al 2 O 3  0-3 (pref. 1À0) wherein calcium oxide, barium oxide or strontium oxide or a mixture thereof can replace ZnO in an amount up to 10 mole per cent of the total composition. (ii) SiO 2  55-65 (pref. 60); PbO 30-40 (pref. 35); Al 2 O 3  0-7 (pref. 0À7) where B 2 O 3 , V 2 C 5  or P 2 O 5  or a mixture thereof can replace SiO 2  and ZnO can replace PbO, up to 20 mole per cent of the total composition in each case. (iii) SiO 2  35-55 (pref. 43À15); PbO 35-60 (pref. 43À15); Al 2 O 3  0-20 (pref. 7À70) where B 2 O 3 , V 2 O 5  or P 2 O 5  or a mixture thereof can replace SiO 2  and ZnO can replace PbO, up to 20 mole per cent of the total composition in each case. (iv) SiO 2  5-15 (pref. 10); ZnO 50-65 (pref. 55À5); B 2 O 3  25-35 (pref. 34À5) where calcium oxide, barium oxide, strontium oxide or a mixture thereof can replace ZnO up to 10 mole per cent and PbO can replace ZnO up to 20 mole per cent. Other glasses disclosed contain at least 50 mole per cent, and preferably at least 70 mole per cent, of PbSiO 3 , Pb 6 Al 2 Si 6 O 21 , ZnB 2 O 4  or Zn 2 SiO 4  and a further group comprise (a) 1 : 1 mole ratio PbOSiO 2 +#1% B 2 O 3 ; (b) 1 : 1 mole ratio PbO and SiO 2 +a few mole per cent V 2 O 5 ; (c) PbO/Al 2 O 3 /SiO 2 .
Patent GB-106010-A (GB)
Title: Improved Means for Forming Suctions in Dentures.
Inventor: GOULD CHARLES WILLIAM
IPC: A61C13/24
Filed: 1916-06-08
Abstract: 106,010. Gould, C. W. June 8, 1916. Moulds. - The core for the formation of a suction cavity in a vulcanite denture consists of a spirally wound strip of ductile metal or other material. In the form shown, the core consists of two disks 1, 2, each formed from a strip of metal wound spirally around an eyelet 3 of ordinary form. The core is held temporarily to the plaster mould by a pin 4, Fig. 5, which is removed before the packing is completed. After vulcanization the strip is spirally unwound in removing it from the denture 5 so as to leave the eyelet 3 in place in the denture. In modifications, a single disk or more than two disks may be employed.
Patent GB-1532732-A (GB)
Title: Carburettors with auxiliary starting arrangements for internal combustion engines
IPC: F02M1/04
Filed: 1977-02-25
Abstract: 1532732 Spray carburetters SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 25 Feb 1977 [29 March 1976] 08160/77 Heading F1H The starting mixture passage 6 opening downstream of the main mixture throttle valve 2 has throttle valves 30 and 10 operable respectively in response to engine temperature and the suction in the passage portion 29 between the valves 10 and 30. A fuel nozzle 25 opens to the passage portion 29 and a valve 21 linked to the valve 10 controls airflow to the nozzle 25 and thus the fuel flow therethrough. The position of the valve 30 is also responsive to the suction adjacent the valve 2 such that the valve 30 is opened to a greater extent as the suction decreases. The thermostat 50 subject to a flow of engine cooling water or lubricating oil, operates through a cam 45 engaged by the lug 44 on a lever 32 pivoted at 33 so that for a given depression in the chamber 38 the opening of the valve 30 decreases with increasing temperature to be closed at the normal engine operating temperature. The valve 10 operates to provide a substantially constant suction in the passage portion 29.