baber/WOPTO huggingface dataset:
Patent GB-231421-A (GB)
Title: Improvements in sound-reproducing apparatus
IPC: H04R9/06
Filed: 1924-10-07
Abstract: 231,421. British Thomson-Houston Co., Ltd., (Assignees of Rice, C. W.). March 27, 1924, [Convention date]. Sound magnifying and directing appliances.-A non-resonant baffle is arranged to make the length of air path between the two sides of the diaphragm of the order of magnitude of at least one quarter the wave length of the longest useful sound waves. A baffle of an effective diameter of three feet may be used with a diaphragm the back of which is enclosed, the enclosure being lined with sound damping material such as felt. The baffle may be conical as in Fig. 4, or pyramidal as in Fig. 8, or may be a shallow box with open back.
Patent GB-1154790-A (GB)
Title: A Film Strip Cutter and Punching Apparatus
Inventor: SHEFFER BERNARD CLIFFORD
IPC: G06K17/00
Filed: 1968-05-17
Abstract: 1,154,790. Cutting and punching webs. GENERAL ANILINE & FILM CORP. 17 May, 1968 [2 June, 1967], No. 23716/68. Heading B4B. [Also in Division B8] A film strip cutter and punching apparatus adapted to provide successive segments of film strip from a continuous film web comprises drive means, feed roller means 20, 21, Fig. 3, coupled to the drive means and adapted to advance a predetermined length of the web, rotary cutter means 27, 28 coupled to the feed roller means and adapted to trim the side edges of the web, and co-operative shear and punching means linked to the feed roller means and operative between successive periods of web advance to sever a segment of the web and concurrently to punch a plurality of spaced apertures in the web. The shear and punching means comprises an upper plate 38, Fig. 6, having fastened thereto a blade 39 and punches 42 to 44 and a lower plate 40 having fastened thereto a blade 41 and provided with apertures 45 to 47. The apparatus comprises side frames 11, 12, Fig. 3, between which is journalled a rotatable crank-arm 8 on which ride eccentrics 13, 14 connected by linkages 15, 16 to the upper portion of the shearing die assembly. The arm 8 has attached thereto a crank-arm 18 which is coupled to the shaft 19 carrying roller 20 by means of a connecting rod 25 and a swivel arm 23 carrying an over-running clutch 22. The clutch 22 is coupled to an over-running clutch 48 and the shaft 19 is provided with an indexing knob 59. Pressure between the rollers 20, 21 is adjustable by means of a handle 50. The cut film strips are conveyed into a receiving tray by means of a guide 52, Fig. 1, which comprises a pair of divergent passageways (56, 57), Fig. 8 (not shown), and a baffle (58).
Patent GB-1291427-A (GB)
Title: Haulage apparatus for a mining machine
Inventor: KORMENDY MILTIADES
IPC: D06C21/00
Filed: 1970-05-15
Abstract: 1291427 Propelling vehicles COAL INDUSTRY (PATENTS) Ltd 11 May 1971 [15 May 1970] 23728/70 Heading B7H [Also in Division E1] Haulage apparatus for a machine comprises two hydraulic rams each attachable at one end to the machine and each attached at its other end to means for releasably engaging a track extending along a path of the machine, and control means, for simultaneously actuating. the two rams in an opposite sense with respect to each other, comprising limit switch means sensitive to the extension of the piston-rods of the rams. The apparatus described, for hauling a mining machine along a track on conveyer 8, Fig. 1, conprises rams 36, 38, each having a cylinder 40 connected to the machine, having piston-rods 44, 46 pivotally connected to trackengaging detent means 52, 54, and each being automatically controlled by a switch (not shown) which is sensitive to the degree of extension of the piston-rods. The detent means lie in a conveyer-supported trough-shaped track 28, Fig. 4, which has equi-spaced pairs of aligned slots 34 in its side walls 30. To advance the machine, piston-rod 44 is extended until opposed catches 62 in bore 58 of detent means 52 are extended by spring 64 into a pair of slots 34. Further extension of piston-rod 44 advances the machine, while simultaneously piston-rod 46 is retracted. When piston-rod 44 is fully extended, piston-rod 46 is fully retracted and a pair of spring-loaded catches 62 in detent means 54 are engaged in a pair of slots 34. Extension of rod 46 further advances the machine. At the end of the conveyer one pair of catches 62 in each detent means is retracted, and engaged by pins 68, the other pair of catches in each detent means being released so that the machine may be advanced in the opposite direction. Alternatively, the machine may be hauled by two pairs of hydraulic rams, each pair being pivotally connected to a separate clamping means having a pair of clamping rams whose piston-rods may be extended to grip a rail supported by the conveyer. When one pair of clamping means are actuated to grip the rail, the other pair are actuated to release their grip on the rail. When during clamping the pressure of the hydraulic fluid in the clamping-rams exceeds a set pressure the associated pair of advancing rams are actuated to advance the machine. Simultaneously, the other pair of advancing rams are retracted. The apparatus may include a " fail safe " brake spring-loaded towards the " ON " position.
Patent GB-185733-A (GB)
Title: Improvements in or relating to drawing mechanism for textile rovings
IPC: D01H5/28
Filed: 1922-09-01
Abstract: 185,733. Casablancas, F. Sept. 10, 1921, [Convention date]. Rollers and roller heads; twist tubes. -Relates to a drawing-mechanism comprising a false-twist device arranged between two drawing sets, the second of which is provided with feeding-devices in close proximity to tha drawing-rollers, and in which the peripheral speed of the feeding-devices of the second set is sensibly greater than the speed of the drawing-cylinders of the first set so as to produce a drawing of the roving while it is being subjected to the false twist. The false twist device 60 is arranged between the drawing-rollers 4, 5 of the first drawing-set and the feeding-belts 31, 32 of the second set, and comprises a funnel-shaped member 60 provided at 63 with a helical groove for imparting the twist. The member 60 rests in and is driven by a ring 66, which is mounted to rotate in a support 67, receiving its rotary movement by a cord passing over grooved pulleys 61. The roving is given a transverse to-an-fro movement by a bar 57, and the false-twist device supports are made in one piece with this bar 57. In a modification, the belts 31, 32 are replaced by two small rollers arranged close to the drawing-rollers 8, 9.
Patent GB-192726-A (GB)
Title: Improvements in and relating to cranes for vehicles, trucks, and the like
IPC: B60P1/48
Filed: 1921-09-07
Abstract: 192,726. Goodger, A. E. Sept. 7, 1921. Lever load-handling appliances.-For loading vehicles an inverted U-shaped frame 14 which straddles the vehicle is pivoted at 13 and extended below the pivots at one or both sides to form operating handles 17 giving a mechanical advantage in raising the load. The handles may be at any angle with the frame, for example at right angles lying along the sides of the vehicle. The load is suspended from the top bar of the frame either directly or by tackle. As shown in Fig. 3, a single frame 14 is used. Holding means, such as a pawl, may be provided to retain the frame in position. The load may be suspended from a traveller on the top bar 15 of the frame. As shown in Fig. 4, a second pivoted frame 27 is connected to the frame 14 by bars 28 forming runways for a bridge 30 carrying a traveller 31. In this form, four operating handles 17 may be provided which may be detachable. The U-frame or frames may be made with sides adjustable in height, and with top bars adjustable for vehicles of different widths. The frames may be arranged for loading vehicles at one or both sides instead of at the end.
Patent GB-188442-A (GB)
Title: Improvements in or relating to the bearings of the rollers of dye jigs or vats and the like
IPC: F16C13/02
Filed: 1921-09-07
Abstract: 188,442. Farrell, E. Sept. 7, 1921. Supporting and mounting bearings in machines for treating cloth such as dye jigs, caustic impregnating tanks, open soapers, calenders and ageing machines. The rollers are fitted in tanks containing liquid, and are supported in ball or rcller bearings in brackets on the outside of the tank; means are provided to prevent liquid passing from the tank to the beamings. As shown the roller journal b is supported in a self-aligning ball-bearing d carried in a bracket f which is bolted on the outside of a tank c containing liquid. A cup-leather i prevents liquid leaking from the tank. The spring k and plate j may be dispensed with and the bearing casing filled with lubricant under pressure, or the liquid-tight means may consist of an ordinary gland and packing with or without the cup-leather i. A drainage tube may be fitted to the bracket f.
Patent GB-459281-A (GB)
Title: Improved gauging devices for operations such as shearing upon sheets or strips
IPC: B23D15/06
Filed: 1936-09-01
Abstract: 459,281. Shearing. WILLIAMS, W. P., 24, Southampton Buildings, Chancery Lane, London.-(American Rolling Mill Co. ; Middletown, Ohio, U.S.A.) Sept. 1, 1936, No. 23962. [Class 83 (iv)] In a gauging device for positioning a strip relatively to a fixed shearing blade or other tool, three gauge points ABC, Fig. 1, are arranged with the point B midway between A and C and the angle DAB equal to the angle BAC. AB and AC being chords from a point A on the circle ABC. A line K parallel to a radius AO representing the line of the cutting blade. If a straight or cambered strip contacts the points ABC, the blade will effect a radial cut. The gauge comprises arms 16, 17 with contact points B, C, Fig. 8, pivoted on a point A. The arms terminate in racks 26, 27 engaging gear-wheels to give a 2 to 1 motion of the arms. The strip is moved to contact the three points ABC and is then in position to the cut by the blade 9. By arranging insulated members on the points ABC, Fig. 12 (not shown), a lamp may be lit when each point contacts the strip and may energize solenoids to operate three contacts in series with an electromotor driving the machine.
Patent GB-1471266-A (GB)
Title: Magnetization of flyweight of centrifugal governors
IPC: H01F13/00
Filed: 1973-05-19
Abstract: 1471266 Speed governors LUCAS INDUSTRIES Ltd 9 May 1974 [19 May 1973]  23964/73 Heading G3B [Also in Division H1] A centrifugal governor comprises, Fig. 1, a casing 10 with a cylindrical bore 11 containing a parted sleeve 12 supporting a rotatable drive sleeve 13 carrying a spur gear 14; a pilot valve 15 extending into the sleeve for movement by a device 16 in which a cup 17 is carried by the upper end of sleeve 13 and contains a cage 18, integral with the drive sleeve which supports pivot pins 19 to carry L-shaped fly weights 20. The inner legs 21 of the latter extend under a bearing 22 whose inner race is carried by the upper end of pilot valve 15 for control by centrifugal force on the fly weights against bias spring 23, adjustable by assembly 24 threaded in casing 10. The effect is to control the variations of fluid-pressure at the outlet and further control is imposed by magnetizing the fly weights 20 to have poles at their upper free ends co-operating with annular electromagnet 26 D.C. energized to develop opposed poles at 27, 28, whose field intersects the orbit of rotation of the fly weights. The effective mass of the latter is thus attenuated or augmented by the energization as a secondary control. The fly weights may be remagnetized without dismantling by voltage pulsing the electromagnet with the flyweights stationary and air-gaps a minimum, Fig. 3 (not shown) in response to a circuit Fig. 2, comprising a transformer 30 energized from mains or an inverter to excite a bridge rectifier 33, whose output is connected over a resistor to one side of a SP DT switch 38 whose other side is returned to earth over a resistance 43. Parallel capacitors 44, 45 are charged from the switch moving member 39 in shunt with a meter 48 and resistance 47, and the electromagnet winding is connectible over changeover switches 51, 52 to commutating diode 60 and to pressel switch 57 completing a discharge circuit for capacitors 44, 45. In operation the capacitors are charged to a critical voltage and discharged into the electromagnet winding in selected sense; any oscillatory reverse current or back EMF being absorbed by diode 60. Surplus charge is dischargeable through switch 38 and resistor 43.
Patent GB-660198-A (GB)
Title: Alkoxyalkanoates of hydroxylated hormones
IPC: C07J75/00
Filed: 1948-09-13
Abstract: Esters of hydroxylated hormones of the cyclopentanophenanthrene and stilboestrol series are prepared by reacting the hormone in the presence of a base with an alkoxyalkanoyl halide of the general formula R-O-X-CO-Y where R is an alkyl group containing one to four carbon atoms, X is an alkylene group containing one to three carbon atoms and Y is a halogen, or with an alkoxyalkanoic anhydride having the general formula (R-CO-X-CO)2O in which R and X are as above defined. Hormones mentioned include testosterone, oestradiol, oestrone, stilbestrol, and desoxycorticosterone.  Esters mentioned include methoxyacetate, ethoxyacetate, n-propoxyacetate, n-butoxyacetate, 3-(2-propoxy)-propanoate, 4-(n-propoxy)-butanoate, 2-methoxypropanoate, 2-ethoxy-butanoate and the 3-(n-propoxy)-butanoate.  The preferred basic agent is pyridine. Examples are given of the preparation of the following compounds: testosterone-4-methoxybutanoate; -3-ethoxypropanoate; -n-butoxyacetate; -n-propoxyacetate; and 3-(2-propoxy)-propanoate; testosterone ethoxyacetate; -methoxyacetate; -3-methoxypropanoate; and stilbestrol bis-(ethoxyacetate).
Patent GB-696226-A (GB)
Title: Improvements in or relating to television pick-up tubes
Inventor: GOFF GEORGE BERNARD FRANCIS
IPC: H01J29/38
Filed: 1950-10-02
Abstract: 696,226. Television pick-up tubes; cathode materials and processing. CATHODEON, Ltd. Nov. 26, 1951 [Oct. 2, 1950], No. 24083/50. Addition to 688,904. Class 39(i) A television pick-up tube of the type described in the parent Specification is characterized in that both the photo-sensitive surface 21 and the collector electrode 9 are provided in the form of annular internal wall coatings on the tube envelope, the collector electrode being interposed on the envelope wall between the mosaic and the photo-sensitive coating. The photo-sensitive surface may be illuminated by a plurality of small electric lamps 22 which may be controlled individually or in groups by potentiometers or switches; the collector electrode 9 is preferably positive with respect to the photo-sensitive surface to accelerate the photoelectrons on to the mosaic. In manufacture the envelope may be provided with a small side tube 11 containing a magnetic carrier 12 and a charge 13 of antimony; a further side tube 14 contains caesium 15. The antimony may be lowered to the position 13a by magnetic means and evaporated to form coating on the shoulders 10 of the tube and on the end wall 19; the magnetic carrier can thus be withdrawn and the side tube 11 may be sealed off near the tube envelope without destroying the tube's vacuum. The side tube 14 may then be baked to distil the caesium on to the antimony deposits to form the photo-sensitive surface 21 and the photo-cathode 20; the side tube 14 is then sealed off and removed without destroying the vacuum. The activated surface may then be further sensitized by the addition of controlled amounts of oxygen.
Patent GB-464759-A (GB)
Title: Improvements in or relating to cash registers
IPC: G06C11/02
Filed: 1935-08-29
Abstract: 464,759. Cash registers. COHEN, H., and ABINGDON WORKS (1931), Ltd. Aug. 29,1935, No. 24179. [Class 106 (i)] In a dial set and operated cash register of the kind in which each denominational setting dial 9, Fig. 1, is operatively connected to an indicator disc 19 and is provided adjacent each value marking with a hole 42 to receive a stylus 7 carried by an operating arm 5 rotatable about the axis of the disc, each operating arm is mounted on a spindle 25 axially slidable within a tubular shaft 57 carrying the associated setting dial, such sliding movement serving to enter the stylus in a selected hole in the dial, where it is held by locking means until the arm has been rotated into abutment with a stop 4. The locking means for each arm comprises a disc 24 rigid with the spindle 25 and adapted by cooperation with a spring-urged detent 27 to hold the arm in operative engagement-with its dial until the arm contacts the stud 4, in which position a notch in the disc registers with the detent and the spindle is moved outwardly by a blade spring 46 to disengage the stylus from the dial. In the event of the stylus being entered into the wrong hole, the disc 24 may be released by depressing the stop 4, which action, through a plunger 45 and link 29, disables the detent 27. The dials are held in set position against the action of restoring springs 75 by pawls 31 and ratchets 23 until released by a clearing lever (not shown), prior to the next machine operation. Drawer-release mechaniam.-The cash drawer 11<a> is releasable (through mechanism not shown) by depression of a " No Sale " plunger 68, Fig. 6, or till plunger 61. With the machine in normal condition, the No Sale " plunger is free, and the till plunger is locked by an arm 60a of a shaft 56. However, upon the adjustment of any one of the dials, a cam 12, Fig. 1, on the dial shaft 57 acts through an arm 60 to rock the shaft 56 and arm 60<a>, Fig. 6, counterclockwise, thus freeing the till plunger and locking the " No Sale " plunger. Differentially-moved indicators.-Associated with each setting dial and connected thereto by bevel gears 21, 22 is an indicator disc 19 visible to the operator and customer through windows 18, 18a, respectively. These windows are normally obscured by shutters 54, 55 that are moved to effective position by actuation of the clearing lever and are subsequently rendered ineffective by spring means controlled by the till plunger. Interlocks.-Simultaneous setting of two or more dials is prevented by levers 26, 43, 44, Fig. 3, that co-operate with the inner ends of the spindles 25 and ensure that not more than one operating arm is in effective position at a time. Autographic attachments.-A record strip 13<b> passes from a supply roll 13, beneath a writing aperture 14 to a storage roll 15, feed being effected by a ratchet device operated by a handle 16<a>. The attachment is contained in a housing 13<a> to which acess may be had by a key 16b.
Patent GB-1450630-A (GB)
Title: Photosensitive composition
IPC: G03C1/00
Filed: 1974-05-31
Abstract: 1450630 Photocurable compositions MITSUBISHI CHEMICAL INDUSTRIES Ltd 31 May 1974 [2 June 1973] 24224/74 Heading C3P [Also in Divisions C2 and G2] Photosensitive compositions comprise a photosensitive polymer containing radicals of the formula wherein Ar represents a substituted or unsubstituted aryl group, X and Y which may be the same or different each represent a hydrogen atom, halogen atom, cyano group or nitro group and n represents 1 or 2 ; and a halogen-substituted benzanthrone as a sensitizer. Typical photosensitive polymers include polyvinyl compounds bearing cinnamate or substituted cinnamate radicals in side chains; polyglycidyl cinnamate and polyglycidyl substituted cinnamates; and reaction products of polyepichlorohydrin or polyepibromohydrin and cinnamic acid or a substituted cinnamic acid. The benzanthrone sensitizer is preferably substituted by chlorine or bromine. In use the compositions preferably include a solvent and may also contain a conventional sensitizer, e.g. an aromatic nitro compound or a ketone sensitizer, as well as a stabilizer, plasticizer, dyestuff or pigment. The compositions are particularly sensitive to g-line radiation (4358Š) and may be used in such applications as printing, reproduction, and photoresists for the manufacture of integrated circuits.
Patent GB-1155549-A (GB)
Title: A Sulphur-containing Amine and Process for its Manufacture
IPC: C07F9/165
Filed: 1967-05-25
Abstract: 1,155,549. 1 - (4 - Chlorophenyl) - mercapto- 2-propylamine. CIBA Ltd. 25 May, 1967 [3 June, 1966], No. 24329/67. Heading C2C. Novel 1 - (4 - chlorophenyl) - mercapto - 2 - propylamine and acid addition salts thereof are prepared by reaction of 4-chlorothiophenol or a salt thereof with 1,2-propyleneimine, followed optionally by conversion to an acid addition salt of the product. Pharmaceutical compositions having antidepressant activity comprise as active ingredient 1 - (4 - chlorophenyl) - mercapto - 2 - propylamine or a pharmaceutically acceptable acid addition salt thereof together with a pharmaceutical carrier.
Patent GB-185638-A (GB)
Title: Improvements in filters or strainers and sifting surfaces
IPC: B01D29/01
Filed: 1921-09-13
Abstract: 185,638. Hurrell, G. C. Sept. 13, 1921, Addition to 174,116. Filtering.-In a modification of the filter or strainer covering described in the parent Specification, in which wires are wound on a drum or framework, twisted wires are used having a non- circular cross-section. The twisted wires A may alternate with plain wires A1. An alternative method of forming passages A2 between the wires consists in providing a helical thread on some or all of the wires; this thread may be cut with dies, or formed by winding on the wire a strip of tape &c. or a spiral of fine wire.
Patent GB-1270385-A (GB)
Title: Sensing circuit for use in vehicle braking systems
Inventor: CLIFFORD STANLEY
IPC: B60T8/172
Filed: 1968-05-22
Abstract: 1,270,385. Vehicle braking systems. GIRLING Ltd. 9 May, 1969 [22 May, 1968], No. 24402/68. Heading F2F. A sensing circuit for use in a vehicle braking system, comprising in combination a generator for producing an output signal having a magnitude dependent on the speed of rotation of a selected wheel of the vehicle, electromagnetic means 21 for controlling the braking effort applied to the wheel, and a control circuit coupling the generator to the electromagnetic means 21. The control circuit produces from the generator output a signal representing the deceleration of the selected wheel, and initiates current flow in the electromagnetic means 21 at a predetermined magnitude of deceleration and then increases the current flow with increasing deceleration so that the current flow is proportional to the deceleration. In the construction shown the control circuit is provided with a normally conductive input transistor Q1, the bias thereon being completely removed at the predetermined magnitude of deceleration the cutting off of transistor Q1 causing an output transistor 8 to conduct and activate the electromagnetic means 21. An amplifier is positioned between the two transistors Q1, Q8 and a feedback circuit is provided from the output transistor to stabilize the output current. The feedback is delayed momentarily to allow an increased current flow in the electromagnetic means. The circuit further comprises a second speed circuit 22 to provide another input to a transistor Q4. In a modification (Fig. 2, not shown) a current pump is initiated at a deceleration above a predetermined level so that the brakes are released completely.
Patent GB-1164935-A (GB)
Title: Improvements in or relating to a process for Drilling a Well
IPC: C09K8/05
Filed: 1967-05-25
Abstract: 1,164,935. Drilling muds. DRESSER INDUSTRIES Inc. 25 May, 1967 [25 May, 1966], No. 24463/67. Heading E1F. The alkaline drilling mud circulated in a well is treated with sufficient basic copper carbonate to react with hydrogen sulphide entering into or contaminating the mud. To remove large "kicks" of hydrogen sulphide hydrogen peroxide may be added to the returns of the drilling mud.