baber/WOPTO huggingface dataset:
Patent GB-473098-A (GB)
Title: Improvements in motion picture projecting apparatus
IPC: G03B15/08
Filed: 1936-07-23
Abstract: 473,098. Kinematograph projectors. OFFICE GENERAL DE LA CINEMATOGRAPHIE FRANCAISE. July 23, 1936, No. 20450. Convention date, July 25, 1935. [Class 97 (i)] Prolonged exhibition of a single film image is effected by the energization of an electromagnet to move an abutment into engagement with a roller on an extension of a feed claw, thus preventing the entry of the claws into the film perforations during the continued operation of the projector ; a cam-shaft is rotated for a short time after the engagement, to render the feed mechanism again effective, and to set a spring ready for a subsequent prolonged exhibition of an image. As shown, claw arms 1 pivoted on a pin 12 mounted on a frame 3 are reciprocated in the direction of feed by a cam 4, and to and from the film by a cam 5 engaging a rod 6. The arms 1 are provided with an extension 10 carrying a roller 11 which may ride on the edge of a flap 14 to prevent movement of the claws towards the film, and the rod 6 is connected to the arms 1 by a spring 7 which absorbs the thrust of the cam 5. The flap 14 is hinged at 15 and is biassed by a spring 24 to keep a bent portion 16 in engagement with a cam 17 on a shaft 19. The shaft 19 is normally held stationary by a rod 21 engaged with a notch in a disc 20, and the cam 17 is then in a position such that the flap 14 is turned free of the roller 11. Energization of the magnet, e.g. by the impact of a bullet on a target, withdraws the rod 21, and permits a spring 22 to rotate the disc 20 and shaft 19. The cam 17 then turns the flap 14 to the position shown in Fig. 2, in which it engages the roller 11 and renders the feed claws ineffective. The shaft 19 is gradually restored to its normal position by an eccentric on the main shaft 25 carrying a pawl 26 engaging a ratchet 27 on the shaft 19. The feed mechanism is then again effective, and the spring 22 tensioned ; the energization of the electromagnet having been interrupted, the rod 21 enters the notch in the disc 20 to hold the shaft 19.
Patent GB-1068203-A (GB)
Title: Windscreen washer pump for motor vehicles
IPC: B60S1/48
Filed: 1965-05-14
Abstract: 1,068,203. Reciprocating pumps. SOCIETE TECHNIQUE ET COMMERCIALE DU MOTOCYCLE. May 14, 1965 [May 14, 1964], No. 20503/65. Heading F1A. [Also in Division F2] In a flexible chamber pump the movable members of the inlet and outlet valves are formed by the outer and inner portions of an annular disc which is held between opposed annular faces at an intermediate point, these annular faces being axially or radially off-set to distort the disc so that its edges are resiliently urged into contact with the valve seats.
Patent GB-202327-A (GB)
Title: Improvements in apparatus for use in coke ovens
IPC: C10B29/02
Filed: 1923-08-13
Abstract: 202,327. Kernohan, R. B. Aug. 12, 1922, [Convention date]. Coking processes.-A horizontal coke oven is provided with a tapered core arranged centrally and forming with the oven walls narrow vertical chambers for the reception of the coal, so as to facilitate uniform coking and enable the coke to break up into suitable sized pieces on discharge. The core 3 is composed of interlocking segments 1 consisting of refractory blocks having metal bands 2 with alternate grooves 4 and projections 5 adapted to engage loosely, projecting vanes 8 serving to provide guides to centre the core in the oven. The core has a similar taper to the side walls, so that the chambers on each side of the core are of uniform widths from end to end of the oven, and the core may taper outwardly from the top to the bottom or in the reverse direction. The oven is discharged by a pusher 16, which compresses the coke before the latter is discharged into a truck 11 and the core pushed into a hood 14 to protect the metal parts against oxidation; the core is then drawn back into the oven, which is recharged from the top.
Patent GB-732750-A (GB)
Title: An agricultural machine for injecting liquids into the ground
IPC: A01M17/00
Filed: 1953-07-24
Abstract: 732,750. Injecting fertilizers into soil. LEUENBERGER, C. July 24, 1953 [July 30, 1952], No. 20609/53. Class 6 (1). A machine for injecting fertilizers and insecticides into the ground comprises a wheeled frame 1 carrying a tank 2, feeding, through a pump 3, to hollow injecting-tines 8 which are resiliently and pivotally supported from cranks 30 driven by the land-wheels 7 so that the tines are vertically reciprocated at a rate proportional to the speed of the wheels, the tines being slidable in sleeves 28 pivoted on the cranks 30 and being pressed downwardly by springs 29, so that the cranks are permitted to continue movement in the event of the tines being arrested by an obstacle. The cranks are driven in out-of-phase pairs from the respective land-wheels 7 through a chain drive to a crankshaft 31 above each wheel. The dosage of liquid supplied to the tines is controllable in quantity and timing by a valve 13 actuated by an adjustable cam on each crank-shaft. Clutches are provided on the crank-shafts for disabling either or both drives, e.g. for transport. Discs 32 on the tines limit their penetration and counterweights 20 return them to their normal position after withdrawal.
Patent GB-689566-A (GB)
Title: Apparatus for the treatment of plants
IPC: A01G5/06
Filed: 1949-02-04
Abstract: 689,566. Preserving plants. FROSCHEL, P. Feb. 6, 1950 [Feb. 4, 1949], No. 20629/48. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 5, 1949.] Class 49. [Also in Group XXVIII] For extending the period of freshness, or restoring the freshness, of plants, i.e. vegetables, fruits, and flowers which have been severed from the roots, plucked, or otherwise removed from their natural state, the plants are subjected to a vacuum and then to increase in pressure to cause water or an aqueous solution to fill, partially or wholly, the intercellulary spaces of the plants. The plants may be submerged in the water or aqueous solution in a closed chamber, the chamber exhausted, and then atmospheric pressure restored to the chamber, or a closed chamber containing the plants may be exhausted, and then the water or aqueous solution admitted to the chamber and the vacuum broken. After the vacuum treatment, pressure above atmospheric pressure may be used for forcing the water or aqueous solution into the intercellulary spaces. The degree of vacuum may be between 5 inch and 30 inch of mercury, the period of vacuum treatment 0.5-20 min., and the period of subjection to increased pressure 0.5-20 min. The two treatments may be repeated. With the apparatus of Fig. 1, which shows the closing element of a container of plants connected to a vacuum pump, a cam 34 mounted on the lid 2 of the container is slowly rotated mechanically, and at each rotation the cam lifts a lever 31 to open a valve 30 and admit air to the container; by such means alternate evacuation and breaking of vacuum can be effected at regular intervals. In cases where it is desired to create in the container for plants a pressure greater than atmospheric, the apparatus of Fig. 2 may be employed; a pipe 41, in which is a tap 43, is to an exhaust pump, a pipe 45, in which is a tap 44, is to a source of compressed air or water under pressure; the taps are operated by a handle 48 through a link 47, arranged so that when the tap 43 is open the tap 44 is closed, and vice versa; at the end of an evacuation period, movement by hand of the handle 48 closes connection to the exhaust pump and permits ingress of air or water under pressure. With the apparatus of Fig. 3, the plants are within a perforated vesels 50 rotatable with a spindle 51, the vessel 50 being within a container 52; the container 52 is filled with water, is closed in an airtight manner and is evacuated by way of a pipe 61, the vacuum is broken abruptly by opening a tap 64 to the atmosphere, the water is drained from the container by opening a tap 60, and the perforated container 50 is thereupon rotated rapidly to dry the plants externally.
Patent GB-221502-A (GB)
Title: Improvements in or relating to headlights or projectors for automobiles or other vehicles
IPC: B60Q1/124
Filed: 1924-09-02
Abstract: 221,502. Scherer, B. Sept. 8, 1923, [Convention date]. Vehicle lamp supports ; trunnion mountings.- A vehicle lamp, adapted to be rotated vertically and horizontally, is provided with arms 7 having pivot pins 7b mounted in bearings 2b on a fork 2, projections 6 on the bearings 2b normally engaging notches 7a in the arms 7 but being adapted, on rotating the lamp, to engage the flat outer face of the arms 7. The stem 2a of the fork is pivoted, and secured by means of a helical spring 4 and a nut 5, in a hollow socket 1, projections 3 on the fork normally engaging notches 3<a> in the socket but being adapted, on rotating the fork, to engage the flat upper end of the socket. The lamp may be provided with an operating-handle or may be controlled from a distance, the projections 6, 3 being returned to their normal position by means of a spring.
Patent GB-839360-A (GB)
Title: Improvements relating to the waterproofing of leather
Inventor: HUTTON WALTER JOSEPH
IPC: C14C9/00
Filed: 1955-07-18
Abstract: 839,360. Waterproofing leathers. CLARK Ltd., C. & J. Oct. 12, 1956 [July 18, 1955], No. 20716/55. Class 140. Tanned leather is waterproofed by treatment with dispersions or solutions for example in isopropanol or methanol, of primary or secondary aliphatic amines having at least 12 C atoms, such as stearyl-, dodecyl-, or dioctylamine, together with a cross-linking agent such as formaldehyde, glyoxal, or crotonaldehyde, which binds the amine to the leather. The two materials may be used together or in succession and with or without an acid or an alkaline catalyst such as sulphuric acid on caustic soda. Treatment is effected with. moderate heating, e.g. to. above 50‹ C.
Patent GB-748299-A (GB)
Title: Neutral esters of dithiophosphoric acid
IPC: C07F9/165
Filed: 1953-07-27
Abstract: The invention comprises esters of the formula <FORM:0748299/IV(a)/1> where R is an alkyl radical of 1 to 3 carbon atoms and x and y are 1 or 2.  They are prepared by reacting the appropriate O,O-dialkyl dithiophosphoric acid either as an alkali metal salt or in the presence of an acid-binding agent, with a compound of the formula <FORM:0748299/IV(a)/2> at temperatures of from room temperature to 80 DEG  C., preferably in the presence of a solvent, e.g. water, benzene, acetone, methyl ethyl ketone and alcohols.  In the examples, the following esters are prepared: (1) and (2) O,O-diethyl - S - methyl - mercaptoethyl -, (3) and (4) O,O-diethyl-S-ethylmercaptoethyl-, (5) O,O-diethyl - S - methylmercaptomethyl -, (6) and (7) O,O - diethyl - S - ethylmercaptomethyl -, (8) O,O - diethyl - S - ethylmercaptomethyl -, (9) O,O - di - n - propyl - S - ethylmercaptomethyl-, (10) O,O-di-isopropyl-S-ethylmercaptomethyl-, (11) O,O-dimethyl-S-ethylmercaptomethyl-, and (12) O,O-dimethyl-S-ethylmercaptoethyl - dithiophosphate. Specification 676,776 is referred to.ALSO:The invention comprises esters of dithiophosphoric acid which have contact-insecticidal and/or miticidal properties and have a high systemic effect on living plants and which have the general formula <FORM:0748299/VI/1> where R is an alkyl radical of 1 to 3 carbon atoms and x and y are 1 or 2.  They may be applied as aqueous solutions or as powders containing a carrier.  In the examples: (13) a 0,001 per cent aqueous solution of O, O-diethyl-S-ethylmercapto-methyl dithiophosphate containing a wetting agent is sprayed on green apple aphids, and in (16), in slightly varying concentration, is sprayed against Red Spider on bean plants: (14) the same compound, 2 gms., in admixture with talc, 98 gms., is used against Colorado beetles and their larvae: (15) a powder consisting of equal amounts of the compound of Example 13 and charcoal is applied to cotton seed.  The compounds also have a toxic effect on mice. Specification 676,776 is referred to.
Patent GB-835609-A (GB)
Title: Improvements in or relating to top arms for roller drafting mechanisms
Inventor: NOGUERA JOSEPH
IPC: D01H5/56
Filed: 1957-07-02
Abstract: 835,609. Drafting mechanisms. CASABLANCAS HIGH DRAFT CO. Ltd. April 8, 1958 [July 2, 1957], No. 20932/57. Class 120(2) A top arm for drafting mechanism of the kind which extends over the drafting field from a rear mounting and which has means for holding and weighting consecutive dual-boss top rollers from their centre necks, is of inverted channel form with comparatively shallow side walls 1b and has roll-holding and weighting arrangements each comprising guide means e.g. 10a depending below the side walls and adapted to straddle the centre neck of a top roller while leaving it free to rise and fall, retaining members e.g. leaf-springs 13 which resist complete withdrawal from the guide means of the roller neck, and a pair of symmetrically mounted torsion springs e.g. 18, which extend lengthwise of the arm to apply the weighting pressure. The leaf spring is retained by a nut 14 between the upper part 10 of the guide means and a U-shaped member 15 which serves as a stop for the upper leg of the torsion spring, and has an aperture 15c through which the other leg 18b passes to bear on the neck of the roller. The spring is carried by a pin 16 which extends through apertures in the side walls of the guide 10a, and the guide, U-member 15 and leaf spring are adjustably held on the arm by a nut 19. The arrangements for the front and intermediate rollers are similar except that the intermediate roller is weighted by the second legs of the torsion springs which weight the front roller. With the arrangement described, it is possible to use clearer rollers which extend over several drafting mechanisms, the arms being bridged by the necks 20 of the rollers 21.
Patent GB-392384-A (GB)
Title: Improvements in or relating to graining or printing machines for decorating the surfaces of hollow articles
IPC: B41F17/22
Filed: 1932-07-25
Abstract: 392,384. Printing-machines. TENNANT, W. J., 111, Hatton Garden, London.-(Oxford Varnish Corporation ; Michigan, New Jersey, U.S.A.) July 25, 1932, No. 20974. [Class 100 (ii).] Rotary machines ; tripping-arrangements.-A printing or graining machine for printing imitation wood grains &c. on the surfaces of hollow boxes, or U and L-shaped blanks comprises a vertical printing roller 2 which may be an offset roller receiving its design from an intaglio printing cylinder 1, or which may be a rubber printing roller, and co-operating with the roller 2 is an impression roller 3 mounted in an arm 100 which is pivoted in an adjustable manner and preferably supports the roller 3 at its lower end only in such a manner that the box or the like W to be printed can be inserted between the rollers 2, 3 by a vertical movement. The lower end of the box W is supported on a guide 140 having an aperture 142 through which the roller 3 projects, and during the printing operation the guide causes the box to maintain its position axially of the roller 2. The roller 1 is driven by sprockets and bevel gearing from an electric motor, and the roller 1 is mounted so that its driving shaft 7 is connected to its driving gear by means of a tongue 75 and a slot 71 formed in the driving shaft 68 which is mounted in ball bearings. The roller 2 is driven by independent gearing from the shaft which drives the roller 1, and the roller 3 is put into driving connection with the driving mechanism of the roller 2 by means of a clutch 135, 136, Fig. 2, when the arm 100 is operated to bring the roller 3 into printing position. The roller 2 is mounted in a pivoted frame 17 which is adjustable by a screw 52 in order to vary the pressure on the roller 1, and by a cam 50 to trip the roller 2 when desired. In a modification, Fig. 6, for printing boxes or blanks of various thicknesses, the impression roller 3 is mounted in a sliding crosshead 150 which can be moved over guides 116a, 160. The guide 116a is a shaft geared by bevel gearing to the shaft of the roller 1 and a bevel gear 131a splined to the shaft 116a drives the roller 3 in all positions of adjustment of the crosshead 150. This adjustment is effected by a treadle mechanism, and bolts 168 may hold the crosshead in the required adjusted position. Inking-apparatus ; set-off, preventing.-The roller 1 is supplied with ink from a well 26 by means of a vertical screw 28 driven from the roller 1 and discharging ink through a slot 25<1> in a pump casing 25 in which the screw 28 works. The roller 1 is scraped by a spring- pressed doctor 40 which is reciprocated vertically by a cam, and the roller 2 is kept clean by a scraper 41 similar to the doctor 40 and pressed towards the roller 2 by the same spring 45 which acts on the doctor 40. Both members 40, 41 can be tripped by the same cam 47. Specification 388,616 is referred to.
Patent GB-1101533-A (GB)
Title: Improvements in smoker's pipes
Inventor: LOWENTHAL HANS
IPC: A24F1/00
Filed: 1964-05-21
Abstract: The Specification describes the same tobacco pipe, cigar or cigarette holder as that described in Specification 1,101,531 but the claims are directed to a smokers' utensil having a stem which includes a tubular metal part forming a smoke cooling chamber and a piston assembly which fits into the metal part and wherein the portion of the end of the piston assembly which leads when the assembly is fitted into the tubular metal part, and integrally formed with the rest of the piston assembly, is provided with a peripheral groove holding an O-ring which fits tightly inside the tubular metal part and both acts as a seal between this part and the piston assembly during normal use and acts as a scraper to clean the inside of the tubular metal part when the piston assembly is drawn out of the tubular metal part.
Patent GB-1471306-A (GB)
Title: Production of glass fibres
IPC: C03B5/20
Filed: 1974-05-13
Abstract: 1471306 Glass fibre bushing feed PILKINGTON BROS Ltd 29 April 1975 [13 May 1974] 21116/74 Heading C1M In an apparatus for producing glass fibres the bushing is sited below an opening in the floor of the forehearth through which the glass flows from the furnace, a plate covers the opening at or near the bottom thereof and has a duct therein which extends upwards into the glass flow whereby the glass is protected from the cooling effect of the forehearth floor which tends to devitrify the glass in the fibres thus causing them to break. In Fig. 1, the bushing 3 has a duet 4, in cover plate 6, which has an open top although it may open out conically upwards, have a projecting top cap facing the direction of glass flow or a strainer cap to remove solid particles. Several ducts may be placed along the forehearth to withdraw glass from different levels and the duct and cover may be made of Pt/Rh alloy which can be heated by an electric current.
Patent GB-1260494-A (GB)
Title: Terazzo self-lubricated composite
IPC: C08L101/00
Filed: 1969-04-25
Abstract: 1,260,494. Bearing compositions; piston rings. DOW CORNING CORP. 25 April, 1969 [27 May, 1968], No. 21178/69. Headings F2A and F2T. A self-lubricating bearing or a piston ring comprises a dispersion of rigid lubricating granules in a bonding matrix of a flexible material chosen from an elastomer, a thermosetting resin, or a thermoplastic resin, the particle size of the granules being greater than 200 mesh and the flexible material constituting 15 to 35% by volume of the bearing or ring. The granules are preferably dispersions of lubricating material in a rigid binder, the lubricating material being chosen from graphite, PTFE, boron nitride, and sulphides, selenides and tellurides of molybdenum, tungsten, titanium, tantalum, zirconium, hafnium, niobium and thorium, the lubricating material constituting 25 to 97% by weight of the lubricant material and rigid binder. The granules may also include up to 50% by wt. finely divided particulate materials chosen from calcium fluoride, zinc oxide, zinc sulphide, potassium titanate, and antimony trioxide. The flexible material may have a fibrous reinforcing material embedded in it, and may also include lubricant particles smaller than 200 mesh in an amount not exceeding 50% by wt. of the flexible material.
Patent GB-920701-A (GB)
Title: Improvements in and relating to hydraulically operated clutches
Inventor: HISCOCK JAMES AUBREY HUGH
IPC: F16D25/0638
Filed: 1958-07-02
Abstract: 920,701. Friction clutches. B. W. DAWE & CO. Ltd. June 30, 1959 [July 2, 1958], No. 21186/58. Class 80 (2). An hydraulically operated friction clutch comprises interengaging friction discs 17, 20 splined respectively to a hub 2 and a sleeve 18 of a gear pinion 19 and clamped between a back plate 3 integral with the hub 2 and a presser plate 4, by fluid pressure applied to a chamber 5 defined by an inner cylinder 1 integral with the hub 2 and an outer cylinder 6, a flange 7 of which is pressed by a nut 8 against the cylinder 1 which bears on a shoulder 10 of a shaft 9. The clutch is disengaged by a release spring 16. The presser plate 4 is counterbored at 12 and has splines 13 engaging the splines on the hub 2.
Patent GB-631710-A (GB)
Title: Improvements in or relating to chimney sweeping equipment
IPC: F23J3/02
Filed: 1947-08-05
Abstract: 631,710. Chimney-sweeping equipment. ALLIN, A. S., and HYGIENIC CHIMNEY CLEANERS (LEICESTER), Ltd. Aug. 5, 1947, No. 21214. [Class 126] Chimney-sweeping equipment for use in association with the usual chimney cleaning implements comprises a canvas apron 1, the upper edge and side flaps 3 of which are adapted to be held firmly, by means of adhesive tape, over the front of the fireplace opening, with which is integrally formed a soot-collecting pocket or pouch 4 adapted to be held within the fire-place, by an extensible clamping device 14 and adhesive tape 19. A slot 6 is formed in the apron for the attachment of a slave 7 through which the rods 22 of the sweeping apparatus are passed.
Patent GB-614657-A (GB)
Title: Improvements in or relating to road signs
IPC: E01F9/07
Filed: 1946-07-17
Abstract: 614,657. Road surface markings. LAYTON, A. E. July 17, 1946, No. 21346. [Class 3(ii)] Relates to a road traffic sign for defining traffic lanes of the kind comprising a reflector carrier 8 which normally protrudes. from a casing 1 embedded in the road surface but can be depressed into the casing against the action of a spring 10 by a vehicle wheel. According to the invention, at least one resilient washer 6 is arranged between the reflector carrier and the casing to wipe the reflectors during displacement of the carrier. As shown, the wiping means comprises three resilient washers 6 arranged in step formation to give less resistance to upward movement. The carrier 8 mounts eight reflectors equally spaced around its periphery, its upward movement is limited by abutting rims 4, 9, and rotation is prevented by an interengaging slot and pin 8a, 4a. The casing 1 has a removable base plate 7 and a rim 3 which rests on the road surface and which has projections arranged between adjacent reflectors to take the main vehicle weight.
Patent GB-438153-A (GB)
Title: Improved construction of compressed air engines
IPC: F01B1/06
Filed: 1934-07-21
Abstract: 438,153. Compressed-air engines. BELL, W. T., Hillside, South Park, and JOHNSTONE, A., 104, Yarborough Road, both in Lincoln. July 21, 1934, No. 21387. [Classes 122 (ii) and 122 (iii)] Comprises a radial, single-acting, multiplecylinder, compressed-air engine with a number of crank-shafts geared to the driving-shaft. The inlet is controlled by a central rotary valve, and the exhaust by the pistons. Openended cylinders are mounted on a block 11 which houses the valve mechanism. The pistons operate cranks 3 on shafts 4 which drive the main shaft through gear wheels 5, 6, 7. A rotary inlet valve with ports 22, 23 revolves within a fixed tubular portion 16 arranged within the chest. A reversing sleeve valve 18 provided with slots 19 and adjusted by hand, surrounds the part 16. The inlet passage ways are curved at 13. The fluid operates on opposite pairs of pistons simultaneously.