baber/WOPTO huggingface dataset:
Patent GB-1159618-A (GB)
Title: Improvements in Devices for the Assembly of Universal Joints
Inventor: SCHAEFFLER WILHELM
Filed: 1966-11-22
Abstract: 1,159,618. Making universal joints; assembling force fits. W. SCHAEFFLER and G. SCHAEFFLER, [trading as INDUSTRIEWERK SCHAEFFLER oHG]. 22 Nov., 1966 [10 Dec.. 1965], No. 52284/66. Addition to 1,072,168. Headings B3A and B3U. A device for the assembly of a universal joint, which is formed by the interconnection of two forked shafts 1 by means of a cross-piece 5, in which a ram 10 is connected with a mechanism 7, which mechanism is displaceable in relation to the fork arm and between which and the fork arm are arranged elements 24 for the transmission of the reaction force, and in which an adjustable stop is provided for limiting tho displacement distance of the mechanism in a direction opposite to that in which the pressure acts, is characterized by the mechanism 7 co-operating with a part 15 to form a stop in such a manner that it moves in an opposite direction to the pressing-in force through a predetermined distance 17. The pressing-in force is applied by hydraulic pressure acting on a piston 9 and when the bearing 6 is fully home in the fork arm 2 continued application of the pressure overcomes a spring 16 to open out the fork. This distance 17 can be varied by rotation of a threaded member 12, which engages part 15. The part 15 is held in position by applying hydraulic pressure to pistons 19 which press against clamping rings. 23
Patent GB-1357676-A (GB)
Title: Electrical waveguide mixer arrangements
IPC: H03D9/06
Filed: 1972-11-14
Abstract: 1357676 Frequency changing STANDARD TELEPHONES & CABLES Ltd 14 Nov 1972 52433/72 Heading H3T A waveguide mixer includes a mixer diode 5 mounted in or closely adjacent to a resonant slot 3 in a wall of a first length of waveguide 1 constituting on one side an evanescent mode filter-i.e. a waveguide operating at below its nominal cut-off frequency, being capacitance loaded to that end by means of adjustable screw member 2-for coupling to power from a signal source. On the other side of the mixer diode 5 it constitutes a further evanescent mode filter for coupling the diode to power from a local oscillator source. Covering the slot 3 is a second length of waveguide 6 having a crosssectional dimension such as to be evanescent at the mixer generated image frequency and propagating at the mixer generated sum frequency. A capacitative obstacle, i.e. screw 8, is located in the second length of waveguide 6 at such a distance from the slot 3 as to constitute therewith an evanescent mode resonator tuned to the image frequency so as to effect termination of the image frequency. A shortcircuit plate 10 is located in the second length of waveguide 6, beyond the capacitative obstacle, being so positioned as to effect reactive termination of the sum frequency. In the embodiment, local oscillations are prevented from entering into the signal source by means of a second slot 4 in the waveguide 1, providing coupling to an evanescent mode filter comprising waveguide 7 tuned by means of screw 7 to the local oscillator frequency, while an I.F. signal is obtained from mixer diode 5, which may be a Schottky barrier diode, over low-pass filter 12 in a coaxial output coupling 13. The mixer diode may alternatively be coupled into the main waveguide via a dumbbell shaped transverse slot (Fig. 14, not shown).
Patent GB-1443477-A (GB)
Title: N-caboxylic anhydrides of amino acids and derivatives thereof
IPC: C07D263/44
Filed: 1973-11-13
Abstract: 1443477 Poly(aminoacids) KYOWAHAKKO KOGYO KK 13 Nov 1973 [13 Nov 1972 31 Jan 1973] 52671/73 Heading C3R [Also in Division C2] Starting materials for the preparation of polyamino acids are N-carboxylic anhydrides of amino acids or of derivatives of amino acids which are obtained by reacting the latter with trichloromethylchloroformate in the presence of an organic solvent. Examples 5, 6, 10 and 11 describe the polymerization at 20‹ C., using dioxan and/or 1,2- dichloroethane as solvent and triethylamine as initiator, of N-carboxylic anhydrides of L- leucine, #-carbobenzoxy-L-lysine, γ-methyl-L- glutamate (or it Ca or HCl salt) and γ-methyl-D- glutamate (or its HCl salt).
Patent GB-1244250-A (GB)
Title: Improvements in and relating to stencils
IPC: B43L13/20
Filed: 1969-10-28
Abstract: 1,244,250. Stencils. LINCOLN INDUSTRIES Ltd. 28 Oct., 1969 [23 Dec., 1968], No. 52695/69. Headings B6C and B6P. A stencil comprises a sheet 1 of transparent material having marked thereon a plurality of outlines 2, 3, 4 of a drawing, each outline having apertures 5 conforming to portions thereof, the apertures together serving to permit the complete drawing to be reproduced by successive application of the outlines and tracing round or painting over the areas delimited by the apertures.
Patent GB-1484599-A (GB)
Title: Surgical instrument for biopsies
IPC: A61B10/00
Filed: 1974-12-06
Abstract: 1484599 Biopsy instrument D M HALPERM E R SANCHEZ and A LIVOFF 6 Dec 1974 [6 Dec 1973] 52947/74 Heading A5R A surgical instrument for biopsies comprises a handle 1, first 15 and second 13 rods extending forwardly in parallel relationship from the handle, the first rod having means for effecting an incision in tissue and means for retaining a portion of the incised tissue, the second rod having, means for detaching the retained tissue portion from surrounding tissue, finger-operable controlling means provided in the handle for firstly operating the first rod to effect an incision and for subsequently operating the second rod to effect tissue detachment and the handle incorporating a spring biasing the first rod in a forward direction and the finger-operable controlling means including a trigger arranged, when operated, to allow the first rod to be projected forwardly by the spring to effect an incision. The first trod may be hollow, is connected by a coupling part 9 to a vacuum, and has sharp edges in a forward punch end 5 to incise tissue on being pressed forward by spring 18, which presses against a rigid widened portion 16 of rod 15. Rod 15 is normally held in a retracted position by a lever 20 and detent member 22, an end 23 of lever 20 being held in a toothed part of member 22; spring 18 being compressed by a pulling action on knob 8 or by pressure on knob 11. The lever 20 is released, from member 22 by downwards pressure on a knob 10, punch 5 thus cutting into a patient's tissue, the punch then being withdrawn by pressure on knob 11, tissue being held inside the punch by the vacuum applied through hollow rod 15. The second rod is then rotated by pulling trigger 12 which pushes a lug 33 integral with the second rod through a helical aperture 32 in a sleeve 3' surrounding rod 13. Rotation of rod 13 causes the stretched incised tissue held in punch 5 to be cut off from surround tissue by sharp edges of an opening 14 in a disc 6 fixed to rod 13. The distal ends of the two rods may be covered by a sleeve which has viewing windows. In second embodiment a rod carries two jaws resiliently biased away from each other, this rod moving inside a second hollow rod, the jaws thus being opened and closed by such movement, thereby cutting and retaining tissue without the need for an applied vacuum, a sleeve sliding over the jaws and carried by the second rod detaching the tissue portion from surrounding tissue. A simplified controlling mechanism for this embodiment is also disclosed.
Patent GB-1125596-A (GB)
Title: Bobbin holder with wedge member
IPC: D01H1/18
Filed: 1965-12-16
Abstract: 1,125,596. Bobbin supporting means. R. K. WHITEHEAD SEN., R. K. WHITEHEAD JUN., A. C. WHITEHEAD, and H. C. WHITEHEAD. 16 Dec., 1965 [30 July, 1965], No. 53426/65. Heading D1J. In the bobbin holder shown in Fig. 1 the two bobbin supporting pawls 50 and 51 are pivotally supported by bosses 55 housed in recesses in a shell S in a manner preventing displacement of the bosses along the length of the shell. A wedge member C forces the pawls apart so that they engage under a shoulder 12 of a bobbin B. By raising a sleeve R, the wedge member C is forced to rise and cam rods (66, 68 Fig. 2 not shown) on the wedge member C rise up a track 69 and eventually settle in an island member 71 to hold the wedge member C in an elevated setting and so permit the supporting paws to close together. The empty bobbin B can then be removed. On pushing a full bobbin onto the shell S the sleeve R is raised and lowered to cause the cam rods (66, 68) to be lifted off the island 71 so that the wedge member C descends to push the pawls 50, 51 apart again.
Patent GB-1270207-A (GB)
Title: Improvements in or relating to cranes
IPC: B66C23/52
Filed: 1970-11-10
Abstract: 1,270,207. Jib cranes. MITSUBISHI JUKOGYO K.K. 10 Nov., 1970 [15 May, 1970], No. 53503/70. Heading B8B. A twin-type crane comprises a common mount 1 mounted for slewing on a base 3 of a ship and carrying a pair of jibs 4, 4<SP>1</SP> similarly mounted. The jib 4, e.g. is mounted for luffing on a post 2 and is slewed on a bearing 12. As shown in Fig. 1 the jibs 4, 4<SP>1</SP> are operable independently, the mount 1 being locked. For operation as a twin crane the jibs 4, 4<SP>1</SP> are brought into parallelism, Fig. 3, and their respective luffing winches 5, 5<SP>1</SP> and load winding winches 8, 8<SP>1</SP> respectively operated in synchronism by connecting clutches 17, 17<SP>1</SP>. The twin jibs 4, 4<SP>1</SP> in this mode are slewed by use of the mount 1. In a modification, Fig. 6 (not shown), the jibs 4, 4<SP>1</SP> are luffed by hydraulic cylinders (22), (22<SP>1</SP>) operated either in parallel or in series for independent or synchronized working of the jibs 4, 4<SP>1</SP>.
Patent GB-1411109-A (GB)
Title: Rotatable surface aerator
IPC: B01F3/04
Filed: 1972-11-21
Abstract: 1411109 Rotary surface aerators J R KAELIN 21 Nov 1972 [22 Nov 1971] 53735/72 Heading B1C A rotary surface aerator comprises a frusto conical shaped rotor body portion 10 which has a plurality of rings of liquid conveying channels 5, 6, which are orientated with respect to the rotor axis in radial planes and angularly spaced around the axis, and extending obliquely and/or outwardly curved direction with respect to the rotor axis. Whereby, in operation rotation of the rotor causes the liquid to be aerated to be drawn upwardly and outwardly through the channels and discharged on to the surface of the liquid. Further channels 7, 8 may be provided between the radially channels to facilitate the introduction of oxygen or oxygen mixture to enhance the aerating process. Deflectors (25) Fig 8 (not shown) may also be incorporated which extend around the top of the rotor and radially over the outlets of the channels 5 and 6 to further enhance aeration by breaking up the discharge flow. The body portion 10 of the aerator is hollow so as to be bouyant and float on the top of the liquid whereby the aeration process may be effected at any level in the liquid containing vessel. In the embodiment shown in Fig 2 open channels 14 are also provided on the external surface of the rotor body. In the embodiment shown in Fig 4 the channels 5 and 6 are straight, but tapered along their length and tapered vanes 19 are provided beneath the channels and which radiate from the rotor axis to increase the velocity of flow through the channels.
Patent GB-1494490-A (GB)
Title: Urea analysis
IPC: G01N33/487
Filed: 1974-12-13
Abstract: 1494490 Determination of urea OWENSILLINOIS Inc 13 Dec 1974 [21 Dec 1973] 54031/74 Heading G1B [Also in Division C3] Urea is determined in an aqueous specimen by a method comprising the sequential steps of:- passing the specimen into a hydrolysis zone containing immobilized urease where the urea is hydrolyzed to ammonium ions, removing the resulting mixture from the hydrolysis zone, raising the pH of the hydrolysis mixture so produced to at least 11 to convert the ammonium ions to ammonia in aqueous solution, contacting the ammonia-containing solution with a hydrophobic ammonia-permeable membrane for a time sufficient to allow gaseous ammonia to permeate the membrane and determining the ammonia permeating the membrane by dissolving the ammonia in an electrolyte and potentiometrically determining the resulting increase in pH of the electrolyte. In the Examples, the urease is used coupled to agarose gel or cross-linked polydextran using cyanogen bromide or to particulate alumina optionally using 1, 2- dibromo-ethane or 1, 3 dibromopropane as coupling agent, to acrylamide gel, kaolinite or silica, to glass powder using alpha-aminopropyltriethosilane, or to nylon powder, the nylon being pre-treated with glutaraldehyde, and the ammonia-permeable membrane is of micro-porous polypropylene or a copolymer of acrylonitrile and vinyl chloride. Apparatus for carrying out the method comprises a hydrolysis chamber having an inlet to which a stream of buffered diluent is fed, the hydrolysis chamber containing the immobilized urease and having an outlet to which a mixing chamber is connected, the mixing chamber having an inlet for base solution, a mixer positioned for mixing the hydrolysis product with base and an outlet for allowing flow of effluent from the chamber over one side of the membrane as above, the other side of the membrane defining part of a reservoir of liquid electrolyte, and a pH sensitive electrode immersed in the electrolyte.
Patent GB-1260124-A (GB)
Title: Loudspeaker
Inventor: ANTAL LASZLO
IPC: H04R7/20
Filed: 1969-01-14
Abstract: 1,260,124. Loudspeakers; diaphragms. VIDEOTON RADIO-ES TELEVIZIOGYAR. 14 Jan., 1969, No. 54144/68. Heading H4J. A loudspeaker diaphragm 1 (see also Fig. 1, not shown) has a compliant outer peripheral suspension 5 made from expanded material having closed pores 10. The enclosed pore surfaces are covered with a layer 9 of damping substance which is inert with respect to the expanded material, i.e. which is not miscible with the expanded material, does not dissolve it, is not soluble in it, does not react chemically with it and is less viscous but has higher damping qualities than the expanded material itself. The expanded material may be a mixture of natural and synthetic latex and the damping material may be glycerol. The diaphragm 1 and peripheral suspension 5 are secured together by a bonding agent 11 which has a lower modulus of elasticity than the diaphragm 1 but higher than the peripheral suspension 5. Bonding agent 11 may be soft rubber adhesive. The diaphragm 1 is made from felted paper.
Patent GB-1349437-A (GB)
Title: Percussion hand drill
IPC: B25F5/00
Filed: 1972-11-23
Abstract: 1349437 Portable electric drills ROBERT BOSCH GmbH 23 Nov 1972 [24 Nov 1971] 54231/72 Heading B3C [Also in Division B4] A two-speed rotary-percussive hand drill comprises an electric motor 6 for rotating first and second gear-wheels 31, 23 at different speeds, and an externally operable adjusting member 38 for selectively axially moving the tool spindle 17 into engagement with one or the other of the gear-wheels and into a position where notches 25 on one of the gear-wheels co-operate with notches 24 on a fixed part of the drill to cause the percussive action. The two gear-wheels 31, 23 are driven simultaneously at different speeds from a pinion 22, the gear-wheel 23 being driven directly and the gear-wheel 31 being driven through gears 21 and 34. The adjusting member 38 as shown consists of a disc which can be rotated on a shaft 37 into four positions located by a ball catch 44, the stepped surface 38<SP>1</SP> being arranged to push the tool spindle into its forward first position where a pin 28 on the spindle engages in a slot 32 in the gear-wheel 31 to be driven thereby at "slow speed". In the second position of the tool spindle, the pin is moved into a recess between the two gear-wheels so as not to be engaged by any gear-wheel. In the third position, the pin engages in a slot 26 in the gear-wheel 23 to be driven thereby at "fast speed" and in the fourth position the pin pushes the gear-wheel 23 up against the notches 24 to effect rotary and percussive drilling. The adjusting member 38 may be linearly slidable instead of rotary. The tool spindle may be urged rearwardly by a spring (17g or 17h) Figs. 5 or 6 (not shown) and the end 17<SP>1</SP> of the tool spindle may be provided with a ball bearing or hardened pin. When no spring is provided the tool spindle 17 may be pushed rearwardly against the selected step on the surface 381 by the pressure of work. The gear-wheels and bearings may be made of sintered metal.
Patent GB-1080150-A (GB)
Title: Improvements in or relating to the production of 5,10,17-trihydroxyestrane compounds
IPC: C07J75/00
Filed: 1965-12-22
Abstract: Novel compounds having the general formula <FORM:1080150/C2/1> wherein X represents a pair of alkoxy groups, each having 1-5 carbon atoms, an alkylene dioxy group having 1-5 carbon atoms or a carbonyl group, Y represents an <FORM:1080150/C2/2> group, a pair of alkoxy groups each having 1-5 carbon atoms, an alkylenedioxy group having 1-5 carbon atoms or a carbonyl group, in which R represents a hydrogen atom, a lower alkyl group, a lower alkenyl group or lower alkynyl group and R1 represents a hydrogen atom, a lower alkanoyl group or a benzyl group, are obtained by hydroxylating a compound of the formula <FORM:1080150/C2/3> wherein X1 represents a pair of alkoxy groups each having 1-5 carbon atoms or an alkylenedioxy group having 1-5 carbon atoms, and Y is as defined above, followed, if required, by oxidizing a 17-hydroxyl group to a 17-oxo group, condensing the 17-oxo group with a Grignard reagent or lithium compound of lower alkane or alkyne to form the corresponding 17a -substituted 17b -hydroxyl grouping, hydrogenating a 17a -lower alkynyl group to the corresponding 17a -lower alkenyl or alkyl group, acylating the 17-hydroxyl group with a lower alkanoylating agent to form the corresponding 17-lower alkanoyloxy group, hydrolysing or hydrogenolysing the 17-lower alkanoyloxy or benzyloxy group to the corresponding 17-hydroxyl group and/or hydrolysing the 3-ketal group with acid to form the corresponding 3-oxo group.  Pharmaceutical compositions containing the above compounds, valuable in the treatment of atherosclerosis, are administered enterally or parenterally.
Patent GB-1287798-A (GB)
Title: Process for the production of light-sensitive material for the preparation of printing formes suitable for printing continuous tones and process for the preparation of the printing formes
IPC: G03F7/023
Filed: 1969-11-07
Abstract: 1287798 Photo-sensitive materials KALLE A G 7 Nov 1969 [9 Dec 1968] 54709/69 Heading G2C  Light-sensitive materials are produced by coating a support with a solution of a quinone diozide and a resin in dimethyl formamide, dimethyl sulphoxide, 2, 2,3,3-tetrafluoropropenol or 2,2,3,3,4,4,5, 5-octefluoropentanol, which solution contains at least 1À9 per cent by weight of the quinone diazide and 2À5-100 per cent by weight, based on the weight of the diazide, of the resin, the total weight of diazide and resin being at least 2À1 per cent by weight of the solution and thickness of the dried coating is between 0À4 and 3 microns. Specified resins are movolaks, resoles, polyurethanes, epoxy resins, alkyld resins, polyacrylic acid, polyvinyl acetate, cellulose acetate, styrene/maleic acid copolymer and resins based on maleic acid. The support may be metal, polymeric or a laminate of paper and aluminium and the polymeric support may be subbed with a hardened polyvinyl alcohol layer before applying the light-sensitive layer. The material may be used to produce continuous tone printing plates.
Patent GB-1455563-A (GB)
Title: Fibrous mater-als
IPC: D04H1/56
Filed: 1972-11-29
Abstract: 1455563 Metal oxide fibres IMPERIAL CHEMICAL INDUSTRIES Ltd 16 Nov 1973 [29 Nov 1972] 55090/72 Headings C1A and C1J [Also in Divisions D1-D2] Polycrystalline alumina, alumina/silica, or zirconia fibres having an average diameter of 0À5 to 5 microns and a non-fibrous content of less than 5% by wt. are formed by fibrizing of viscosity greater than 1 poise, an aqueous solution of an Al or Zr compound, e.g. an oxychloride, basic acetate, basic formate, or nitrate of Al or Zr, and a minor proportion of a watersoluble organic polymer, e.g. polyvinyl alcohol, polyethylene oxide, or polyvinyl pyrrolidone, and, in the case of alumina/silica fibres, a watersoluble organic silicon compound such as a polysiloxane in addition to the previously mentioned water soluble organic polymer, drying the fibres formed, and heating the dried fibres to decompose the Al or Zr compound to form the oxide and also to decompose the polymer(s). Heating in the presence of steam is preferred. Fibrizing is preferably carried out by extruding the fibrizing composition through one or more apertures into at least one gas stream having a component of high velocity in the direction of extrusion. In the examples, a solution of aluminium oxychloride containing polyvinyl pyrrolidone was fibrized and heated to 850‹ C. to give alumina fibres (Example 1), and a solution of zirconium acetate containing polyethylene oxide and yttrium chloride was fibrized and heated to 850‹ C. to give yttria-stabilized zirconia fibres (Example 2).
Patent GB-1457199-A (GB)
Title: Capsule carrying a certificate stamp therein
IPC: B65D55/08
Filed: 1974-12-20
Abstract: 1457199 Tamper-indicating heat-shrinkable capsule M FUJIO 20 Dec 1974 [18 July 1974] 55279/74 Heading B8T A capsule 1 having a paper, plastics or metal foil certificate stamp 5 bonded therein comprises a heat-shrinkable film with its ends 3 and 4 overlapped to form a tubular body, the parts 2 being bonded but non-bonded overlapping portions being left with a certificate stamp 5 inserted between these portions and at least one line of perforations 6, 7 being provided, the line 6 arranged axially in the non-bonded overlapping portions in alignment with the centre-line of the stamp and the line 7 arranged axially in a suitable position to the side of the stamp. Slits 6a and 7a are provided at the lower ends of the lines so that when the capsule is heat shrunk over a stopper and bottle neck, a projecting portion 10 is formed for grasping when removing the capsule. In a second embodiment, two lines of perforations are arranged circumferentially of the capsule and a U-shaped continuous line connecting the two lines provides a projecting portion when the capsule is in use. In a third embodiment, a tear tape narrower than the stamp is arranged axially and stuck to the inner surface of the non-bonded overlapping portions with an end projecting above or below the capsule to facilitate tearing along the lines of perforations arranged radially outwardly of the side edges of the tear tape. In a fourth embodiment, the end 4 is positioned along the centre-line of the stamp and bonded to the inner surface of the stamp.