baber/WOPTO huggingface dataset:
Patent GB-296139-A (GB)
Title: Weed extractor and turf replacer
IPC: A01B1/16
Filed: 1927-12-15
Abstract: 296,139. Luxford, W. Dec. 15, 1927. Hand tools for destroying weeds and cutting turf.-In a weed extractor and turf replacer comprising a tubular cutter a carried by a tubular shaft d and and an ejector piston h operated by a rod g passing through the tubular shaft, the rod g is provided with a projection or pin l adapted to engage with a longitudinal slot i in the shaft d and with transverse slots j, k communicating with the slot i, so that the ejector h may be moved up or down in the cutter a and may be locked in position at different heights in it for extracting a weed or cutting a turf of greater depth to replace it. The cutter a and handle f are connected to the tube d by a reducing socket c and a shoulder piece e respectively. The handle f and the piston h are preferably made of wood and the handle g<1> of the rod g of metal. The piston may be provided with cup-leather or other washers, and the cutter tube a with an air hole a'.
Patent GB-960099-A (GB)
Title: Fermentation process
IPC: C12N1/38
Filed: 1963-04-11
Abstract: A process for producing chemicals, particularly antibiotics, by submerged aerobic fermentation of a microorganism includes the step of adding to the fermentation medium in an amount sufficient to prevent or reduce surface foam therein without simultaneously decreasing significantly the amount of dissolved oxygen or the oxygen transfer rate in the fermentation medium, as defoaming agent a water-soluble condensation product of ethylene oxide with a water-insoluble, hydrophobic polyoxypropylene chain formed by condensing propylene oxide with propylene glycol, the water-soluble condensation product having a molecular weight from 1600 to 2800 and the hydrophobic chain having a molecular weight from 1500 to 2500 and constituting about 90% by weight of the water-soluble condensation product.  The process may be employed for the production of penicillins and tetracyclines; examples describe the production of 6-amino-penicillanic acid.
Patent GB-592918-A (GB)
Title: Improvements in and relating to safety razors and blade magazines therefor
IPC: B65D83/10
Filed: 1945-06-09
Abstract: 592,918. Razor blade magazines. HEIDE, H. C. (Gillette Safety Razor Co.). June 9, 1945, No. 14676. [Class 18]. A safety-razor blade magazine is provided with means for preventing the unintentional ejection of a blade, consisting, in the form shown in Fig. 3, of spring stops 23 projecting across the path of the uppermost blade, which are secured by engagement with the spring of the guard 30 of the safety-razor. In the form shown in Fig. 7 the spring stops 53 are retracted by the user grasping and pulling projections 54 on the spring 52. The blades may be ejected by a feeder 20, Fig. 3, or 50, Fig. 7, or the blade construction and method of feeding may be as in Specification 572,579.
Patent GB-699528-A (GB)
Title: Improvements in or relating to screw thread tapping machines for nuts or the like
IPC: B23Q7/00
Filed: 1951-06-21
Abstract: 699,528. Tapping. FIELD, C. L. Sept. 15, 1952 [June 21, 1951], No. 14704/51. Class 83 (iii). A nut-tapping machine using a curved-shank tap and having a guide member 7 which prevents rotation of the nut during tapping and slides with it on a post 6 owing to the tapping torque causing the nut to grip the sides of jaws 8, as described in Specification 679,508, has feed mechanism for the nuts controlled by the movement of the guide member. A link 16 and lever 15 connect the guide member to a push-rod 20 and, as the guide member rises during tapping, the rod is allowed to fall so that a nut blank 9 is fed from the shoot 11 on to its upper surface. When the tapped nut passes off the threaded portion of the tap 12, the member 7 falls and causes the push-rod to lift the blank into engagement with the tap. The member 7 may alternatively operate an electric solenoid or other power-operated means.
Patent GB-1189684-A (GB)
Title: Improvements in and relating to Suspended Folders.
Inventor: ABBOTT DAVID JOHN
IPC: B42F15/00
Filed: 1967-03-31
Abstract: 1,189,684. Suspension filing folders; index tabs. RONEO Ltd. 5 Feb., 1968 [31 March, 1967], No. 14733/67. Heading B6E. A suspension filing folder 2, Fig. 1, has its longitudinal marginal edges clamped between the limbs of a respective one of a pair of U- shaped suspension bars 3 whose ends are provided with plastics inserts 4 and which are cranked to produce a longitudinally extending rib 5, Fig. 4, serving as an abutment for hooks 6 of an index tab 7 which is attached to one of the suspension bars 3 through the intermediary of a pair of transversely extending indents 8, 9, Fig. 5, for sliding movement along the suspension bar on which the tab may be arrested at selected positions by spaced indents 15. The plastics inserts 4 of channel configuration and in sliding engagement with a supporting rail (not shown), are provided with a transverse peripheral rib clamped between correspondingly recessed limbs at the ends of the suspension bar. The index tab 7, Fig. 4, has a supporting plate 10 provided with two integral stems 12 terminating in hooks 6 which embrace the rib 5 for sliding movement along the suspension bar 3. The plate 10 supports an index label retained in position by a transparent window 11 and prevented from sliding movement along the plate 10 by a bent lug 14 integral with the plate 10. The index tab 7 is prevented from being displaced from its selected position on the suspension bar 3, to which it has been moved slidably along the rib 5, by a projection member (13, Fig. 3) that co-operates with one of a number of indents 15 on the suspension bar 3. Specification 1,189,683 is referred to.
Patent GB-508621-A (GB)
Title: Improvements in or relating to hand operated suction cleaners
IPC: A47L5/04
Filed: 1938-05-18
Abstract: 508,621. Vacuum cleaners ; air pumps. BAYLY, W. E. P. (Cortes, K. 0. C.). May 18, 1938,No. 14825. [Class 8 (i)] The piston 7 of a hand-operated vacuum cleaner comprises a pair of discs distanced by rods on which a rubber ring 18 rolls. The piston rod slides in a slotted tubular handle 2, and is operated by a knob 9.
Patent GB-528957-A (GB)
Title: Improvements in and relating to treating chambers in which water is sprayed into an air stream
IPC: B01F3/04
Filed: 1939-05-18
Abstract: 528,957. Washing air. STURTEVANT ENGINEERING CO., Ltd., and SOWERBY, P. May 18, 1939, No. 14850. [Class 55 (ii)] A tower 3 for spraying air with water stands in a bath 4, and water from a circular pipe 11 is sprayed on the outer surface which is covered with absorbent material such as canvas. Air is drawn by a fan 15 through baffle-plates 7 at the top of the tower, and after passing through a series of sprays 10 flows through a chamber 12 packed with baffles 13 for the removal of dirt etc.; sprays 14 periodically wash the baffles 13. A pump conveys water from the bath to the sprays 10; or chilled water from a separate source may be used.
Patent GB-1293640-A (GB)
Title: 3-amino-5-pyrazolones useful in photography
Inventor: ABBOTT JOHN RICHARDS
IPC: C09B26/02
Filed: 1970-03-26
Abstract: 1293640 Photographic 5-pyrazolone colour couplers EASTMAN KODAK CO 26 March 1970 [2 April 1969 9 Feb 1970] 14871/70 Heading G2C [Also in Division C2] Light-sensitive silver halide emulsions contain as colour couplers 5-pyrazolones substituted in the 3-position by an amino group which is the residue of a primary amine or of a secondary amine in which the N atom is in a saturated ring having no more than 6 ring atoms. (See Division C2 for preparation of said colour couplers). Particularly useful colour couplers are 5- pyrazolones substituted in the 4-position by an organic thio group such as a 1-phenyl-5- tetrazolylthio group, a 2-benzothiazolyl-thio group, a 5-phenyl-1,3,4-oxadiazolyl-2-thio group or a 2-benzimidazolylthio group. Amongst colour couplers incorporated into photographic materials are 3-indalino-1-phenyl-5-pyrazolone, 3-morphidine-1-phenyl-5-pyrazolone, 1-(2,4,6- trichlorophenyl)-3- {3-[α-(2, 4-di-tertamylphenoxy)-acetamido] -benzamido}-5- pyrazolone. The coupler may be a development inhibitor releasing (DIR) coupler. Examples 42-46 relate to photographic materials and processing.
Patent GB-889992-A (GB)
Title: Torque limiting device
Inventor: CHAPOUX EDOUARD
IPC: B25B23/142
Filed: 1958-05-09
Abstract: 889,992. Slip couplings. INDUFI S.A. May 9, 1958, No. 14877/58. Class 80 (2). [Also in Group XXIII] An overload slip coupling particularly for screwdrivers comprises a flexible blade 1 fixed at one end in a wall 2 fast with a cylindrical input member 3 and engaging at its free end a cam 14 on an output shaft 12. The blade bends under torque and disengages the cam at a predetermined torque to discontinue the drive. The blade is supported in the housing by a slider 9 having frictional contact with the blade and adjustable in the housing by means of a screw 6 so that the effective length of the blade can be varied to vary the maximum torque transmitted. A screw 16 prevents movement of the blade radially of the housing and also provides a secondary adjustment for the maximum torque. In modifications cam 14 has cavities or projections on its end face cooperating with the blade; the longitudinal section of the blade may be such that the maximum torque transmitted is portional to the effective length of the blade, and more than one blade may be employed. In another embodiment the blade projects radially inwards from the housing 3 and engages an output cam at its inner end.
Patent GB-753924-A (GB)
Title: Improvements in internal-combustion-operated free-piston machines including a pneumatic return-energy accumulator
IPC: F02B71/06
Filed: 1954-05-20
Abstract: 753,924. Free-piston engines and gas generators. SOC. D'ETUDES ET DE PARTICIPATIONS EAU, GAZ, ELECTRICITE, ENERGIE SOC. ANON. May 20,1954 [June 11, 1953], No. 14883/54. Classes 7(1) and 7(2) An internal combustion operated free piston machine comprises a free-piston assembly including a power piston and a compressor piston rigidly coupled together and slidable in a 'power and a compressor cylinder respectively and a pneumatic accumulator arranged to provide an air cushion which is compressed during the outward strokes of the piston assembly and which restores the energy thus accumulated to the piston assembly during the inward strokes thereof and the pneumatic accumulator is provided with a discharge aperture and means responsive to the reciprocating movement of the piston assembly to maintain the aperture closed during the reciprocating movement and to open the aperture when the reciprocating movement ceases and the means are responsive to variations in the pressure of the air cushion and are adapted to maintain the aperture closed while such pressure variations take place and to open the aperture when the pressure variations cease. The Figs. show a wholly-free-piston gas generator supplying power gas to a turbine or other machine. The pneumatic accumulator chamber 4b comprises a discharge aperture 10 controlled by a piston. While the generator is running the aperture is closed but is opened by the spring 16 when the generator stops. This obviates the pistons moving inwardly and jamming in the case of an accidental stoppage of the generator. An aperture 15 may be provided in the wall of the cylinder instead of in the piston as shown. It is known to discharge the accumulator by means of a valve by operating a stopping member provided for this purpose and which for instance stops the injection of fuel. Semifree piston engines in which only are dead point and generally the inner one is free from mechanical control are referred'to.
Patent GB-1338045-A (GB)
Title: Overload protective device
IPC: H02K11/25
Filed: 1971-05-14
Abstract: 1338045 Protective arrangements ROBERT BOSCH GmbH 14 May 1971 [6 June 1970] 14911/71 Heading H2K An overload protective device for a machine, e.g. a motor 11, having brushes 12, 12<SP>1</SP>, comprises a thermally responsive device 14 disposed in one of the brushes. The device 14 may be a bimetallic switch operative, when heated due to overloading, to close its contacts to effect the energization of a relay 21. This relay opens its normally closed contacts 22 to interrupt the supply to the motor. A switch 10 may be used to switch on both the motor and protective device. In an alternative arrangement, the bimetallic switch may have normally closed contacts and the relay may have normally open contacts. In a further arrangement, Fig. 4 (not shown), the thermally responsive device is a thermo-electric device which is connected to an amplifier controlling an electronic switch. Alternatively, the device 14 may control an optical or acoustic warning device.
Patent GB-880363-A (GB)
Title: Improvements in or relating to steroid compounds
IPC: C07J75/00
Filed: 1958-05-21
Abstract: The invention comprises 19-nor-7-dehydrocholesterol and esters thereof such as the 3,5-dinitrobenzoate thereof, 19-nor-3-acetoxy-D 3,5,7-cholestatriene, 19-nor-D 4,6-cholestadiene-3-one and 19-nor-6-bromo-cholesterone, and a process for the preparation of 19-nor-7-dehydrocholesterol by reducing an enol ester of 19-nor-D 4,6-cholestadiene-3-one with an alkali metal borohydride.  The above process may be modified in that 19-nor-D 4,6-cholestadiene-3-one from which the enol ester is produced is obtained by dehydrobrominating 6-bromo-19-nor-cholesterone e.g. by means of lithium bromide and lithium carbonate in the presence of dimethyl formomide, and the 6-bromo-19-nor-cholesterone is prepared by brominating an enol ester of 19-nor-chlosterone which may be prepared by a method described and claimed in Specification 880,362.  The 19-nor-7-dehydrocholesterol prepared by the above method may be purified by converting it into its 3,5-dinitrobenzoate and then saponifying the dinitrobenzoate. The enol ester is preferably the acetic acid ester and is obtainable by the action of a mixture of acetic anhydride and acetyl chloride. 19-nor-D 4,6-cholestadiene-3-one may also be obtained by oxidising 19-nor-cholesterol with manganese dioxide.  Detailed examples are given.  Specification 832,244 also is referred to.
Patent GB-131189-A (GB)
Title: Improvements relating to the Fasteners of Corsets.
Inventor: MOSS NORAH
IPC: A41F1/04
Filed: 1918-09-14
Abstract: 131,189. Moss, N., and Moss, E. Sept. 14,1918. Stud - and - slot fastenings. - The ordinary stud and keyhole slot fastening of a corset is held secure by a plate d attached to the corset by means of an elastic band c or a light helical spring and having a slot d<1> adapted to pass over the stud c. The elastic band c passes through to the underside of the corset and is secured to one of the ribs f. The slot d<1> may be open to the side of the plate d instead of as shown, and the plate d may be attached to the other side of the corset. A manipulating tab h is provided.
Patent GB-888229-A (GB)
Title: Improvements in sliding doors and windows and frames therefor
Inventor: BERESFORD ELLIOTT
IPC: E05D15/06
Filed: 1957-05-10
Abstract: 888,229. Doors; windows. ELLIOTT BERESFORD & SON Ltd. May 9, 1958 [May 10, 1957], No. 14989/57. Class 20(3) The sliding door or window 20 of Specification 789,460 is slung from removable runners 23 moving in a track 24 located in a recess in the frame head, and its lower edge embraces a guide member 27 of approximately the width of the door opening and which is secured to the frame sill so as to lie within the door housing. Thus the frame is designed so that the sill may be flush with the floor. The shutting edge of the door is in the form of a removably strip 30 engaging a recess 31 in the frame upright. The invention is also applied to a pair of sliding doors or windows (Fig. 3, not shown).
Patent GB-578549-A (GB)
Title: Improvements in jet propulsion plant
IPC: F02C3/08
Filed: 1941-11-21
Abstract: 578,549. Gas turbines ; centrifugal pumps. HALFORD, F. B. Nov. 21, 1941, No. 14998 Drawings to Specification. [Classes 110 (i) and 110 (iii)] [Also in Group XXXIII] A single-sided centrifugal impeller, as described in Specification 578,190 delivers compressed air to a plurality of segmental volutes and thence to a similar number of cylindrical combustion chambers arranged in a conical formation converging to an annular inlet chamber of a single blade ring turbine. The turbine exhaust is received by an annular chamber converging into a single propulsion jet outlet. The turbine drives the compressor through a tubular shaft of a diameter large compared with that of the bearings of the turbine and compressor shafts. Each combustion chamber has an ignition plug energised from a common magnet on a transverse shaft driven through bevel gears. Each combustion chamber is surrounded by a jacket through which part of the compressed air flows to the turbine. The wall of each combustion chamber and each jacket is made in two parts telescoped together and the jacket parts are connected together over the telescoping joint by a corrugated sleeve. Beyond the ignition plug region perforations in the combustion chamber walls admit air from the jacket and these perforations may be prolonged by conical tubes extending into the combustion chamber. Adjacent combustion chambers and their jackets are connected by co-axial transverse tubes. The back of the centrifugal impeller has labyrinth packing fins co-operating with fins on a separable part of the casing. Cooling air passes between the turbine disc and a closely adjacent disc and then enters the turbine blades. The turbine shaft bearing is carried by a conical member bolted to the pump casing and other parts are supported from the conical member so that the whole is carried by the pump supports. In a modification, a single annular combustion chamber receives air from a plurality of segmental diffusers and a sparking plug is associated with each segmental delivery. The turbine drives the pump through a sun and planet differential gear between the tubular shaft and the pump. In an aeroplane assembly the unit is secured by bolting the pump casing to a main wing spar and two converging air inlet channels from the leading edge of the wing are separated by a streamlined bulge.
Patent GB-1262840-A (GB)
Title: Filter for smoking article
Inventor: CALHOUN EDWARD JAMES
IPC: A24D3/16
Filed: 1968-12-04
Abstract: 1,262,840. Tobacco-smoke filters. E. J. CALHOUN and K. G. PINTER. 4 Dec., 1968, No. 15014/71. Divided out of 1,251,034. Heading A2C. A filter element for use in a tobacco smoking article comprises one or more discs of glass fibre material. Where several discs are used they are placed in face to face relationship. The individual fibres may have diameters of from 0.005 to 0.5 mm, and may be rolled, woven, laminated or compressed into sheets. The glass fibres may be coated with agents such as polyoxyethylene sorbitan monooleate or monolaurate, vegetable oils, or solutions of salicyclic acid or potassium silicate. Flavourings such as peppermint, liquorice or anise, or deodorizing agents such as phenol salicylate or p-acetylaminophenol and their esters, may be included. The glass fibre filter material may be interposed between conventional filter elements.
Patent GB-930246-A (GB)
Title: Improvements in handle straps for knot-tying devices
Inventor: SMITH CHARLES ROLAND
IPC: D03J3/00
Filed: 1961-04-26
Abstract: 930,246. Knot-tying devices. WILDT MELLOR BROMLEY Ltd. April 26, 1962 [April 26, 1961], No. 15022/61. Class 74 (2). [Also in Group XXIII] A rotary bill type knotter 4 comprises recessed side-plates adapted to receive and support yarn or thread ends to be tied together, at least one rotary bill equipped with cam-operated openable and closable jaws, elements for reversing the said yarn or thread ends and looping them around the bill, a member for stripping from the bill a knot formed by the same and a thumb-operated actuating member adapted when depressed to effect operation of the cooperating parts. A handle part 1, secured to one side of the tool by a lug 3, has a downwardly directed prong which engages in a detachable pocket part of a strap handle (see Group XXIII).
Patent GB-1188083-A (GB)
Title: Thickness Gauging Apparatus
IPC: G01B7/04
Filed: 1968-03-28
Abstract: 1,188,083. Measuring thickness, electrically. INDEV Inc. March 28, 1968 [March 30, 1967], No. 15044/68. Heading G1N. In apparatus for measuring the thickness of a sheet of material as it passes over an idler roll, a sensing head is supported a predetermined distance above the upper surface of the sheet by a cushion of air. As shown in Figs. 4 and 5, the inductance of a coil 53 wound on a centre polepiece 15 surrounded by an annular polepiece 52 varies in accordance with the distance between the sensing head 42 and the idler roll 13. Meters 63, 68 indicate respectively the thickness of the sheet 71 and the departure from a pre-set norm. A blower (21, Fig. 2, not shown), blows air through a flexible hose 41 into chamber 37 from which the air passes through orifices (44) into a lower chamber 47 and escapes through gap 72. The sensing head is traversed to scan the full width of the sheet by a motor (22) and rack and pinion gearing. Adjustable counterweights (34) reduce the effective weight of the sensing head and stops (69) limit the downward movement thereof. An alternative arrangement, Fig. 6 (not shown), employs a differential transformer instead of the single coil and bridge circuit shown in Fig. 5.
Patent GB-314517-A (GB)
Title: Improvements in or relating to manufacturing imitation fur or the like
IPC: A41H41/00
Filed: 1929-05-14
Abstract: 314,517. Romane, G. June 30, 1928, [Convention date]. Fur fabrics; chenille.-Imitation astrakan fur is made by sticking pieces of chenille on to a fabric or other support. The chenille 50 after being passed through heated revolving tubes to wind the pile round the core is fed by a conveyer band 2 to a slower moving band 9 on which it takes up a sinuous formation and under a heater 12, is then cut into small pieces by a cutter 15 and after removal of dust &c. in a drum 18 falls on a conveyer band 19. Here the pieces of chenille are distributed by hand or otherwise, then pass to a slower moving band 28 and are transferred to the support 34 which passes over rollers 35, 37 and an adhesive supplying device 36. After the support has left the roller 39 the position of any of the pieces of chenille can be adjusted by hand before the spaces between them is filled with dust applied in a chamber 40, surplus dust being removed by a beater 47. The finished fur is wound on a reel 45, any gases from the adhesive being drawn off through a funnel 48. The Specification as open to inspection under Sect. 91 (3) (a) refers also to a hide support. This subject-matter does not appear in the Specification as accepted.
Patent GB-378967-A (GB)
Title: A method of and apparatus for determining the factors of exposure for printing from photographic negatives
IPC: G01J1/12
Filed: 1931-05-22
Abstract: 378,967. Printing meters. VOIGTLANDER & SOHN AKT.-GES., 7, Campestrasse, Brunswick, Germany. May 22, 1931, No. 15138. Convention date, July 22, 1930. [Class 98 (i).] In a method of determining the printing factors of a photographic negative, an instrument for determining the difference of density between selected portions of the negative is used and an apparatus for indicating the appropriate grade of paper is set in accordance with this difference. The apparatus comprises a comparison instrument 19 having an eyepiece 22 for simultaneously viewing the negative 3 and a density screen 6 mounted on a slide 5. The slide 5 carries two contact arms 26, 33, the arm 26 co-operating with contact pieces 27 in circuit with lamps 18 bearing indications corresponding to the required exposure, and the arm 33 co-operating with contacts 34 in circuit with lamps 17 bearing indications corresponding to grades of paper. In use, a transparent portion of the negative is placed under the instrument 19 and the slide 5 adjusted till the portion of the density screen seen in the eyepiece 22 matches the negative. The slide 10 bearing the contacts 34 is then moved until a stop 38 on it abuts against the slide 5. A dense portion of the negative is then placed under the instrument 19 and the slide 5 again adjusted. The time of exposure and the required grade of paper are then indicated by the lamps 18, 17.