baber/WOPTO huggingface dataset:
Patent GB-258072-A (GB)
Title: Improvements in lawn mowers
IPC: A01D34/42
Filed: 1925-08-31
Abstract: 258,072. Donaldson, G. S. Aug. 31. 1925. Lawn-mowers.-In a machine in which the driving-wheels are adjustably mounted in front of the cutting-apparatus and are connected to their axle by free-wheel clutches, and the cutting- apparatus is adjustably mounted and extends laterally beyond the driving-wheels, the rear supporting-roller is carried by adjustably mounted arms the upper ends of which fit into semicircular recesses. The machine comprises two cast-metal skeleton frames 2 connected by tie-bars 5, one of the frames 2 being provided with a detachable cover plate and forming a gear case. The wheels 9 are adjustably secured in position on a shaft or axle 7 by collars and setscrews. They drive the shaft 7 through free-wheel clutches consisting of rollers in tapered eccentric recesses in their bosses. The shaft 7 drives the spindle 17 of the rotary cutter through spur gearing, which does not rotate when the machine moves backwards. The spindle 17 rests in half-bearings beneath bearing caps adjustably secured by set-screws. The ledger blade 20 is detachably fastened to a bar 28 having downwardly projecting semi-circular lugs 31 fitting into corresponding seatings on the side frames, which act as pivotal supports allowing of the adjustment of the ledger blade by means of setscrews 29. The rear roller 33 is carried bv arms 34 the upper ends of which fit into semi-circular recesses in lugs 37. The arms 34 are adjustably secured by bolts 35 passing through curved slots in the side frames. The metal bow of the handle 38 is pivoted on bosses 40.
Patent GB-852354-A (GB)
Title: Improvements in or relating to props and like supports
IPC: E21D23/00
Filed: 1957-07-10
Abstract: 852,354. Mine roof supports. EGGEMANN, W., and CAMPENHAUSEN, E. VON, [trading as SCHWARZ KOMM.-GES., H.]. July 10, 1957 [July 11, 1956], No. 21811/57. Class 20(2) [Also in Group XXIX] A hydraulic prop comprising an inner tube 1 and an outer tube 2 has in its pressure chamber 4 a valve comprising a bell shaped float 10 mounted on a stem 11 which passes through a bore 9 in the prop head 17 and, when the chamber 4 is evacuated of liquid, is suspended by a cross pin 12. In use, liquid'is introduced into the chamber 4 via a fixed pipe 6 which terminates in a piston head 5. Escaping air passes between the float 10 and its seating and through the bore 9 until the liquid raises the float 10 to close the valve and clamp 3 secures the extended tubes 1, 2.
Patent GB-507269-A (GB)
Title: Improved process for obtaining bee venom
IPC: A61K35/63
Filed: 1938-07-22
Abstract: 507,269. Bee venom. FORSTER, J., RUHLAND, F., FORSTER, K. A., and HUG. H., (trading as MACK NACHFOLGER, H.). July 22, 1938, No. 21817. Convention date, Aug. 4, 1937. [Class 81 (i)] Bee venom is obtained by placing the bees between plane surfaces covered with an absorbent such as felt, cloth, paper, leather or the like, and bringing the surfaces together to slightly compress the bees and cause them to sting the absorbent material from which the venom is then obtained by extraction. In modifications, the bees are passed between endless bands running over rollers or between adjustable rollers covered with absorbent material. Known methods in which bees are caught singly and allowed to sting a liquid or an absorbent, or in which the bees are treated with ether or other narcotic, are referred to.
Patent GB-722069-A (GB)
Title: Process for the production of carbon dioxide, sodium sulphate and calcium carbonate
IPC: C01B32/50
Filed: 1952-09-01
Abstract: Carbon dioxide, sodium sulphate and calcium carbonate are prepared by making a dry mixture of sodium bicarbonate and calcium sulphate and adding water to initiate the reaction.  The reaction is preferably effected in a closed vessel to which the mixture of solid ingredients is added, followed by sufficient water to render the mixture liquid or semi-liquid and stirrable.  After the evolution of gas consequent upon the addition of water has begun to slacken, heat may be applied for example by steam pipes, to raise the reaction temperature to 80 DEG C.  The contents of the reactor are then drawn off, the calcium carbonate settled and worked, and the sodium sulphate solution crystallized.
Patent GB-478220-A (GB)
Title: Improvements in safety catches for hoist conveyances
IPC: B66B5/18
Filed: 1936-08-10
Abstract: 478,220. Safety-catch-gear for lifts &c. JAECKEL, F. O. Aug. 10, 1936, No. 22009. [Classes 78 (iii) and 78 (v)] Safety-suspending and rope-releasing apparatus for mine cages and skips, which is brought into action on an overwind, on overspeed, at the bottom limit of the run, and when the suspension rope breaks, is capable of being actuated solely by excess tension in the winding rope at any point in the travel of the cage or skip, such actuation operating both the brakeapplying gear and the rope-releasing means. In the form shown the invention is applied to a skip 3 provided with a supporting framework to which the mechanism is fitted. Brake shoes 36 on the skip frame are applied to the opposite sides of the guides by a plurality of hydraulic rams 33 connected to four main ram cylinders 44, the rams 43 of which are provided with lateral projections or pivots 48 engaging hooks 47 on a T-piece 50, each pair of rams thus holding springs 41 in compression. The T-piece is supported and steadied by light springs 53. If the winding-rope breaks when the apparatus is running under normal conditions, the king-bolt 9 drops, and allows the compression spring 15 to force the member 10 downwards, thus causing the attached feet 55 to move the T-piece 50 downwards bodily and detach the hooks 47 from the rams 33. The springs 41 then force those rams into the cylinders 44 and transmit pressure to the brake rams 33. In the event of overstrain on the winding-rope, sufficient pressure is transmitted through the pivoted levers 18 to compress the springs 25 until collars on rods 27b are contacted by the levers. Further movement then shears the pins 29 and allows the rods to move downwards to rock the T-piece 50 about one or other of the pivots 48, thus releasing the rams 43 in succession. Similarly on an overwind, the tops of the rods 27b strike an abutment and shear the pins 29. The T-piece 50 may also be rocked by the engagement of a projection 58 with a fixed member 59 at the bottom of the shaft to prevent over-lowering, or with a member 60 projected by a governor into the shaft on overspeed. A hand pump 64 is operated to re-set the rams after they have been operated. Disengaging the winding-rope. When the winding-rope is subjected to excessive strain without actually breaking, or when the broken end arrests the falling cage suddenly by catching in an obstruction, the levers 18 shear the pins 29 as previously described. This permits sufficient additional compression of springs 25 to enable the levers to rotate sufficiently to disengage their hooked ends from the collar 13, thus releasing the whole king-bolt-assembly from the skip or cage. The guide tube 16 on the cage is split to enable the lugs 31 on the member 10 to pass during this detaching movement. A handrope 61 can also be fitted to apply the brakes in an emergency when the skip is used for hoisting men.
Patent GB-440898-A (GB)
Title: Improvements in and relating to control systems for electric hoists
IPC: B66B1/12
Filed: 1934-07-27
Abstract: 440,898. Automatic control of speed ; control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. July 27, 1934, No. 22010. Convention date, July 28, 1933. [Class 38 (iv)] [See also Group XXXVII] In a control system for an induction motor driving a hoist or the like a predetermined rate of deceleration when the cage is in a landing zone is obtained by the co-operation of two mechanically actuated contact devices, one driven in accordance with the speed of the hoist and the other in accordance with the position of the cage. A centrifugal device connected with the shaft of the motor 14 controls the position of a contact carrier 44 according to the motor speed, and a cam surface 36a or 36b actuates a contact 40 when the cage is in the landing zone. If during deceleration these elements move at the same rate no contact is made. If the deceleration be too great the contacts 38 are bridged and a contactor 20 energized to apply a driving torque to the motor. If it be too small, contacts 42 are bridged to energize a contactor 18 to apply a plugging torque, and to cause a relay 64 to open contacts in circuit with the two first rotor-resistance contactors. Should this energization of the motor with full rotor resistance be insufficient, contacts 41 are bridged and the contactor 28 energized to short-circuit a section of resistance. In a modification, Fig. 2 (not shown), which permits a change in landing level, and in which the cages 10, 11 are connected to separate cable drums (which can be unclutched to allow one to be separately driven), the two cam surfaces are carried by separate cams driven from the shafts of the separate drums and the contact devices are duplicated.
Patent GB-614968-A (GB)
Title: Improvements in or relating to inking devices for printing machines
IPC: B41K3/60
Filed: 1946-07-24
Abstract: 614,968. Inking rollers. ROOKE, F. E. July 24, 1946, No. 22066. [Class 100(ii)] An inking device, particularly for ticket printing and issuing machines, comprises a perforated ink reservoir roller surrounded by a felt covering which is provided with a number of slits spaced circumferentially to enable the ink to percolate to the exterior over which it is distributed. The inking roller comprises a hollow metal cylinder a, (Fig. 1), with solid end walls b providing flanges d. The cylinder has perforations e, some of which communicate with slots g, and a filling aperture f, and is surrounded by a cylinder h, Fig. 2, of felt, held between the flanges d and having slits i, k, l, which tend to be self-closing and allow the ink to seep through. The ink may be diluted with liquid paraffin and oleic acid.
Patent GB-315806-A (GB)
Title: A method of connecting belts, bands or the like consisting of leather, rubber or analogous material
IPC: F16G3/10
Filed: 1929-07-18
Abstract: 315,806. Pantel, M. July 18, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Splicing.-In a cemented joint for leather or rubber belts or bands, one or more bevelled tongues a<3> cut on one part are fitted into corresponding recesses a<4> in the other part. The meeting surfaces may be corrugated.
Patent GB-1365444-A (GB)
Title: Disc for a brake or clutch
IPC: F16D65/12
Filed: 1972-05-11
Abstract: 1365444 Brake discs: ciutch discs B F GOODRICH CO 11 May 1972 [12 May 1971] 22094/72 Headings F2C and F2E An annular brake or clutch disc with parallel faces comprises a plurality of partially overlapping strips of high temperature pyrolized material bonded together by a pyrolized bonding material disposed between the strips, each of the strips extending circumferentially with one end forming part of one disc face and the other end forming part of the other disc face. Arcuate segments 16 having flat faces and of preferably 45 to 180 degrees angular extent, e.g. 90 degrees (though they could extend from 0 to 45 degrees or greater than 180 degrees), are cut from sheets of pyrolized carbon or graphite cloth, e.g. rayon, having warp cords tangential to the opposed arcuate edges at their mid points. These segments 16, whose arcuate edges form the inner and outer peripheries of the disc, are overlapped and bonded togeher with a high temperature thermosetting resin, e.g. phenolic resin. The assembly is subjected to high temperature and pressure in an autoclave or hydraulic press to cure the resin. Any glaze on the surface is removed to allow gas to pass out of the assembly which is then heated to remove such gases. The assembly is then pyrolized for the bonds to form as graphite bonds at 2800‹ C. or carbon bonds at 1400‹ C. Gas or resin may then be inserted to fill any pores to build up deposits of carbon or graphite. The assembly is machined to produce flat faces, which contain the ends of the segments and of the bonding layers, and grooves 11 in the inner or outer peripheries for mounting to stationary or rotatable members.
Patent GB-437397-A (GB)
Title: Improvements in or relating to combined labels and booklets for use on containers
IPC: G09F3/02
Filed: 1934-07-28
Abstract: 437,397. Labels for containers. MILLER, L. A., 714, Harrison Street, San Francisco, U.S.A. July 28, 1934, No. 22111. [Class 73] An advertising device for use on containers comprises a booklet having a plurality of sheets containing informative matter, one sheet 14 of which is extended beyond the remaining sheets, and the device is arranged around the container 10 with the free end portion of the extension overlying and secured by adhesive to the outer face 20 of the other end of the sheet 14 in such a manner that the unsecured portion of the extension is spaced from the adjacent underlying sheets. The sheet 14 is provided with a marking line 27 which may be weakened, beyond the edges of the remaining sheets to assist in severing the device when removing it from the container. The sheets of the booklet may be formed from a single sheet by folding as shown, or, in a modification, the sheets may be joined together at one end by means of staples or the like. The relative lengths of the sheets of the booklet, and the periphery of the container may be arranged as shown so that the unsecured portion of the extension does not overlie the sheets underlying the sheet 14, or, in a modification, the arrangement may be such that the opposite ends of the sheets overlap, and the unsecured portion of the extension overlies but is spaced from the outer surface of the longer sheet at the unextended end.
Patent GB-1149534-A (GB)
Title: Apparatus for measuring and dispensing liquids
IPC: B29B7/60
Filed: 1966-05-19
Abstract: 1,149,534. Mixing apparatus. DUNLOP CO. Ltd. 19 May, 1966 [13 Oct., 1965], No. 22217/66. Heading B1C. Continuous discharge apparatus for mixing polyurethane foam ingredients has a mixing chamber 1 Fig. 1 with at least two inlets comprising calibrated jets 4 and two relatively rotatable agitating rotors 8, 9 on coaxial shafts, at least one having an indented surface (as shown, grooves 10 which may be straight or helical). Ingredient supply is controlled by two-way valves 2 having inlets 15, 16 communicating in one position with the jet inlets 4 and in the other with by-pass ports 17. The valves are operated simultaneously by a plate (20, see Fig. I not shown) rotatable through a small angle by a pneumatic ram (6), an adjustment being provided to permit of lag between the valves. Each ingredient is proportioned by a diaphragm pump as at 25, Fig. III, the stroke of which is determined by its distance from the fulcrum 40 of a rocking beam 31. In operation the diaphragm pump and associated ducts are filled by a feed pump 23 with the two-way valve 26 in the by-pass position; the shut-off valve 27 is then closed and the two-way valve 26 switched over, and the diaphragm pump operated by the cylinder 42 to discharge a shot into the mixer. The cycle of operations may be performed automatically by electromechanical means. The diaphragm pump is returned by a spring 38. The plate 20 operates in sequence the shut-off valve 27 and the pump 25 as well as the twoway valves.
Patent GB-1089747-A (GB)
Title: Metering apparatus
IPC: G01F11/18
Filed: 1965-05-25
Abstract: 1,089,747. Delivering measured quantities of granular material; making capsules. NORTON CO. May 25, 1965 [June 2, 1964; Dec. 23, 1964], No. 22237/65. Headings B8C and B8N. An apparatus for dispensing measured quantities of granular material comprises a slide 16 having one or more measuring chambers 18 and movable from a first position wherein the or each chamber receives the material from a container 42 to a second position wherein the or each chamber discharges the material into a respective tubular discharge member 48, and a vibrator 50 for assisting movement of the material through the measuring chambers. The slide is mounted in a supporting member 12 having passages 46 leading from the container 42 and connected to the discharge tubes 48. Ports 64 are formed in the supporting member and arranged to be in line with the discharge tubes, the ports being connected to a source of pressurized air via pipes 62. In the particular embodiment shown the dispensing apparatus is arranged to be connected to an encapsulating machine for filling gelatine capsules with either fine powder or spherical pellets. The machine has a pair of feed rollers 160 for feeding sheets of gelatine through a pair of dies 122 having spring-loaded knock-out plugs 132. The dies are mounted in blocks 106 slidably carried by a shaft 104 and urged apart by a spring 110. In operation, with the slide in the position shown, the vibrator is started so as to cause the material in the container to fill the measuring chambers. Cams 116 are then rotated so as to urge the dies 122 into contact with the sheets of gelatine and a suction is applied to the plugs 132 thereby causing them to move outwardly and so draw out the gelatine into the form of capsules. Upon rotation of a cam 26, the slide is moved to bring the measuring chamber over their respective discharge tubes so that by admitting compressed air into the ports 64 the material is dispensed through the tubes into its respective capsule. The cams 116 continue to rotate so as to seal the filled capsules and then allow the blocks 106 to move outwardly so that under the action of stops 140, the plugs eject the capsules from the dies. The slide may be replaced with one having different capacity measuring chambers. In a modification, the slide is formed from two pieces (12c, 12b, Fig. 4) relatively movable to each other, the upper piece 12b having tubes 96 slidable in bores 92a and thereby constituting variable sized measuring chambers. The adjustment is effected by lowering the container by means of adjusting screws (176, Fig. 3); a scale is provided on the container for indicating the size of the measuring chambers. In a further embodiment, the agitation of the material in the container is effected by feeding compressed air through the material in the lower end of the latter; the compressed air may be used in addition to the vibrator 50.
Patent GB-1382313-A (GB)
Title: Process for the carboxylation of glycols
IPC: C07C68/00
Filed: 1972-05-11
Abstract: 1382313 Preparation of carbonates and polycarbonates SNAM PROGETTI SpA 11 May 1972 [13 May 1971] 22237/72 Heading C2C Organic carbonates and polycarbonates are obtained by carboxylating glycols of formula wherein A is a divalent, optionally substituted, aliphatic, cycloaliphatic or aromatic hydrocarbon radical; n is 0 or an integer equal to or greater than 1; and each of R<SP>1</SP> to R<SP>4</SP>, which are the same or different, is an optionally substituted alkyl or aryl radical or a hydrogen atom, with CO and O 2  in the presence of a catalyst comprising ions of a single metal selected from Cu, Ag, Au, Zn, Cd, Hg, Fe, Co, Ni, Ru, Rh, Pd, Os, It and Pt, the metal initially being present in an oxidation state other than its highest oxidation state. The reaction is generally carried out at 0‹- 150‹ C. and at atmospheric pressure, or with the partial pressure of the CO ranging from 1 to 4 atmospheres. Polymeric carbonates are generally obtained when n is an integer and a temperature in excess of 70‹ C. and a pressure of at least 4 atmospheres absolute are used. The presence of a diluent inert to the reaction (e.g. aliphatic or aromatic hydrocarbons, ethers. or esters) is optional. The examples describe the preparation of unsubstituted and methylsubstituted ethylene and propylene carbonates from the corresponding 1,2- and 1,3-glycols and the preparation of linear polycarbonates comprising between 4 and 7 (average values) repeating units.
Patent GB-738825-A (GB)
Title: Automatic centrifugal separator
IPC: B04B11/08
Filed: 1952-09-04
Abstract: 738,825. Centrifugal separators. SUMIYA, S. Sept. 4, 1952, No. 22286/52. Class 23. In a strainer separator comprising a rotary inverted basket 3, a rotary scraper 9 and a feedpipe 5 supplying material through apertures 2 to the interior of the basket, a charge is fed to the separator and the separated solids are removed from the basket wall for discharge during one revolution of the scraper. The basket is carried by a shaft 1 driven by a motor 14. The shaft of a rotary valve 4 in the feed pipe and the shaft 10 of the scraper are driven from the shaft 1 by means of reduction gearing so that for 900 revolutions of the basket, the valve and scraper make ¢ and 1 revolution respectively. When the scraper is in the sector I (Fig. 5) the valve is open and material is fed to the basket, and when the scraper is in the sectors II, III, IV the valve is closed whilst the material is separated and discharged. In a modification in which the scraper and valve rotate at the same speed and the valve is a two-way one, washing liquid is supplied after the separation. In a further modification a valve, linked with the valve in the feed-pipe, is fitted in the drain 13 for the separated liquid so that separated liquid and washing liquid may be collected separately. The axis of the scraper may be inclined instead of vertical as shown, and the scraper may rotate in the opposite direction to that shown in Fig. 5.
Patent GB-615124-A (GB)
Title: Improvements in or relating to beer or like engines or pumps
IPC: B67D1/00
Filed: 1946-07-26
Abstract: 615,124. Beer engines. COOPER, A. J., COOPER, S. W., and COOPER, W. T. July 26, 1946, No. 22297. [Class 102 (i)] A bracket for securing a beer or like engine 6 comprises a casting 1, provided with upper and lower forked extensions 3 and 4 and a saddle member 5 to which is secured a strap 22 adapted to embrace the engine cylinder 6. The stuffing-box extension 8 of the end cover 7 is provided with oppositely arranged flat faces 9 for positioning in the forked extension 3. The lower end cover 14 of the cylinder 6 is provided with a threaded extension 15 on which is mounted a flanged sleeve 17 having a hand wheel 18 adapted to lock the detachable end covers 7 and 14 between the fork members 3 and 4.
Patent GB-188419-A (GB)
Title: Improvements in or relating to means for starting, stopping and driving machinery
IPC: F16H3/56
Filed: 1921-08-24
Abstract: 188,419. Welffens, E. J. Aug. 24, 1921. Toothed gearing. - In epicyclic toothed reducing-gearing for driving spinning-machines, looms, air compressors, motor-vehicles, printing- machines, &c. a driving-drum 11 carries planetpinions 7, 8 clutchable together by forks 9 operated from a rod 16, the pinions having teeth differing in number and gearing respectively with sun-wheels 3, 1 connected together by one or more springs 6. The wheel 1 is secured to the driven shaft 2, and the wheel 3 is free and may carry a fly-wheel 4, or, in an alternative arrangement, the fly-wheel is secured to the drum 11 and to a driving-shaft, or, in this arrangement, the flywheel may be dispensed with. The gearing is so proportioned as to cause the wheel 1 slowly to precede the wheel 3 when the clutches are engaged, the spring 6 starting the shaft 2 without shock. Disengagement of the clutches stops the drive.