baber/WOPTO huggingface dataset:
Patent GB-747291-A (GB)
Title: Improvements in mechanism for controlling the opening and closing of doors
IPC: E05F3/10
Filed: 1954-03-10
Abstract: 747,291. Dashpots. TURNER, B. J., and DUDLEY, W. L. May 19, 1954 [March 10, 1954], No. 6963/54. Class 108 (3). [Also in Group XXV] In a spring door-closer with a hydraulic check cylinder, the latter has an exhaust passage in its end within which a valve spindle reciprocates with the check plunger, there being clearance between the valve spindle and the wall of the passage for the expulsion of fluid by the plunger; the movement of the spindle in the passage keeps the latter clear of dirt. The valve spindle may be of varying cross-section to give different checking action at different positions of the door. The embodiment shown is a double-acting floor spring in which two compression springs 13 bear on a member 32 by adjustable abutment members and on a bridge-piece 10 engaged by a pair of cam pins 11 forming part of a door pivot of which the lower end bears on a pin 8 in the base of the housing 1 and the upper is squared to fit in a socket 6 in the heel of the door, an upper bearing being provided by a cover member 2; members 3, 4 cover the rest of the housing. A cam 19 forming part of the door pivot engages a roller 18 on the check plunger 15, which slides in the cylinder 20 and is guided by a flat part 16 engaging the bottom of the housing 1 being held against the cam by a spring 25. The cylinder 20 has a stem 34 adjustably fixed in a notch in the member 32 by nuts 35 and axially bored for the passage of a valve spindle 21 which moves with the plunger 15, the spindle having a head 22 retained in a bore in the plunger and formed with flats to allow oil to flow past it. Oil is drawn into the cylinder from the housing through a port 26 and ball valve 28 in the plunger 15, and is expelled through the bore. in the stem 34, the spindle 21 having a tapered flat to provide clearance for the oil and to give a progressive checking action; the clearance may alternatively be provided by a straight or helical groove, of constant or varying section, or by making the spindle a tapered needle. The member 32 is adjustable laterally of the housing 1 to enable the closed position of the door to be adjusted.
Patent GB-325131-A (GB)
Title: Improvements relating to alloys
IPC: C22C9/04
Filed: 1929-03-04
Abstract: 325,131. Philippossian, C. Nov. 3, 1928, [Convention date]. Alloys.-A copper-nickel alloy consists of 65- 75 per cent of copper, 18-22 per cent of nickel, 5-15 per cent of zinc, 0.01-0.2 per cent of aluminium, 0.01-0.2 per cent of magnesium, 0.01-0.08 per cent of silicon, 0.01-0.2 per cent of manganese, and 0.01-0.1 per cent of cadmium. The alloy is made by melting together coppernickel and copper-zinc alloys, and adding successively copper-manganese, copper-silicon, aluminium, magnesium, and copper-cadmium.
Patent GB-623125-A (GB)
Title: A tripod head with a removable camera support
IPC: F16M11/12
Filed: 1947-03-13
Abstract: 623,125. Stands. COUTANT, A. C., and MATHOT, J. March 13, 1947, No. 6986. Convention date, March 13, 1946. [Class 52 (iii)] In a tripod in which a camera support is adjustably secured to a table the table is removably secured to the tripod stand and is provided with means whereby it may be'clamped to the tripod stand and, when removed, to another article. The tripod stand comprises an annulus 1 within which rests the table 5. The table 5 is provided with a downwardly projecting pair of arms 18 whereby the table may be clamped to the tripod stand by means of screw-operated clamping plates 19, 20 engaging an integral portion 22 of the tripod stand or these clamping plates may be secured to an occasional vertical support such as a gate &c. when the table has been removed from the tripod stand. An additional pair of arms 14 is provided whereby the removed table may be clamped to an occasional support by means of the clamping plates 15, 16 and this pair of arms is arranged to be detached from the table 5 by depressing a headed bolt 24 to enable the pair of arms to be withdrawn through the slot 23. The camera support is adjustably held against the projections 7 by a bolt 9 the nut of which is operated by a pivot 10 through spindle 11 and bevel gears.
Patent GB-1471846-A (GB)
Title: Biological culturing apparatus
IPC: C12M1/22
Filed: 1975-02-19
Abstract: 1471846 Anaerobic culturing device MILES LABORATORIES Inc 19 Feb 1975 [18 March 1974] 7020/75 Heading C6F Apparatus for the test culturing of microorganisms in a layer of nutrient agar under anaerobic conditions includes a slotted chamber  32 for the reception of a gas-generating tablet  composed e.g. of citric acid and sodium bicarbonate. When moisture is applied to the tablet, as liquid water or moist vapour from the nutrient agar, carbon dioxide evolved passes through the slots to fill the main chamber 26 defined by the  agar layer (not shown) on base 16, closure 36  and the co-operating sidewalls. The side walls 38-44 of the closure 36 slant outwardly. The apparatus may be of circular configuration instead of rectangular as depicted.
Patent GB-147969-A (GB)
Title: Improvements in microscopes and photo-micrographic apparatus
IPC: G03B17/48
Filed: 1919-03-21
Abstract: 147,969. Ross, S. W. March 21, 1919. Microscopes.-The photo-microscopic apparatus comprises a base-plate 3, Fig. 3, an open-sided cylindrical microscope and camera support 4, and end uprights 23 to support an optical bench 25 all rigidly secured together. The microscope body 7 is supported by two fixed plates 6, 8, the former at the top of the cylindrical support 4 and the latter secured to the support by screws. The stage plate 12 carrying the object slide is mounted to slide on four posts 9 extending through holes in the plates 6, 8. The posts 9 carry upper and lower plates 10, 11, and for the coarse adjustment the plate 12 is moved by a rack and pinion movement 13 from the plate 11. For a fine adjustment the underside of the plate 10 carries two small semicylindrical studs 14, Fig. 4, which are pressed on two inclined wedges 15 by springs under the fixed top plate 29. The wedges rest on the plate 6 and are moved by a fine screw 17 and milled head 16, thus adjusting the plate 10 and the plate 11 and stage 12 with it. The stage is illuminated from the optical bench 25 by a reflecting cover-glass or prism in the microscope tube 7 which is adjusted by a knob 21. A diaphragm 22 is also provided on the tube 7. For photographic work a camera box fitted with a dark-slide and focusing-screw is secured to the case 4 by a bayonet-joint.
Patent GB-116084-A (GB)
Title: Improvements in or relating to Photographic Cameras.
Inventor: MAYNES HYLA FREDERICK
IPC: G03B17/24
Filed: 1918-04-26
Abstract: 116,084. Maynes, H. F. April 26, 1917, [Convention date]. Selective punching - machines. - Relates to cameras provided with means by which any one of a number of identification marks may be wholly or partly perforated or imposed upon the film. The film-holding portion of the camera carries near its edge a number of punches 24, Fig. 5, passing through guide-holes in the plates 22, 23 and normally raised by means of a spring 26 engaging shoulders thereon, but which, on depression, will perforate the film 16 and pass through holes in the anvil 27, forcing the pieces of film punched out by the pins into the box 29. Pivoted at 31, Figs. 2 and 5, above the punches is a selecting-disk 30 made in two parts, the upper disk carrying a number of characters, and the lower disk being perforated round its edge as shown at 35, and so arranged that, on depressing the disk, certain pins enter the holes 35 and the others perforate the film with the character indicated on the upper disk. The disk is held in the required position by a spring tooth 41 which engages notches therein, and is depressed by means of a finger key 36. In order to indicate the amount of movement of the film required to space the characters correctly, a roller 51, mounted beneath the window 50 and provided with a line is engaged by the film, its diameter being such that one rotation thereof corresponds to the space for for character. The apparatus may be used for perforating the films either before or after removal from the camera; or the apparatus may be used independently of the camera, for which purpose the back 19 of the camera, with the apparatus thereon, is removed .and the film passed through between the anvil and the back. In modified arrangements, the markings are impressions which do not perforate the film.
Patent GB-124932-A (GB)
Title: Twilling and like Tappet Mechanism for Looms for Weaving Aeroplane and other Cloth.
Inventor: MCKEOWN ROBERT
IPC: D03C5/02
Filed: 1918-04-27
Abstract: 124,932. McKeown, R. April 27, 1918. Shedding-motions. - In shedding-mechanism which can be arranged to produce plain, twill, and other weaves, a cam-supporting casting is combined with change spur-wheels whereby it may be driven at various speeds, the usual second motion shaft being dispensed with. As shown, a cam casting E loose on the bottom shaft has a spurwheel A in mesh with a change-wheel C mounted on an adjustable bracket F and gearing with a change-wheel B fast on the shaft. For plain weaves, the bracket F is removed, and the wheel C is bolted to the wheel A. By suitably arranging the numbers of teeth on the change-wheels C, B and the number of cams, fabrics used in the construction of aeroplane wings, such as two or three shot mattings or twill or huck fabrics, may be woven. Suitable gearing for weaving two, three, and four shot matting, four-leaf drill, and four-leaf huck is described.
Patent GB-1367342-A (GB)
Title: Process for preparing penicillins
IPC: A61K/
Filed: 1972-03-18
Abstract: 1367342 Preparing penicillins and intermediates therefor BEECHAM GROUP Ltd 10 March 1972 [18 March 1971] 7149/71 Headings C2A and C2C  6 - [D(-) - α - amino - p - hydroxybenzylpenicillin and esters thereof are prepared by coupling the D-isomer of a compound of Formula (I) or an acid addition salt thereof, wherein X is an amino, alkoxy or alkylthio group and Y is an amino or enamine group, with 6-aminopenicillanic acid or an ester thereof in the presence of a penicillin acylase enzyme or such an enzyme adsorbed on to or chemically coupled to a waterinsoluble inert support material, or of bacteria that produce such an enzyme, and thereafter, when Y is an enamine group, converting Y to an amine group. Suitable acylase enzymes are those produced by mutants of Escherischia coli, e.g. mutants of E. coli N.C.I.B. 8743. The bacteria are preferably cultivated in a medium low in carbohydrate content and containing a phenylacetic acid salt to encourage formation of the enzyme. The enzyme may be released into the medium or attached to the bacterial cell walls; in the latter case, it is freed from the harvested cells by disrupting them and removing the cell debris. The enzyme may then be adsorbed on or chemically bound to (e.g. by a cross-linking bifunctional agent such as glutaraldehyde) an inert support such as cellulose, glass, cellulose derivatives or polyacrylamide co-polymers to give a water-insoluble enzymically active particulate or membranous material. Alternatively the bacterial cells, optionally with an inert particulate insoluble diluent, may be used. The process is suitably carried out in aqueous solution at 20-50‹ C. and pH 5 to 7, using about a 1% concentration of reactants in about equimolar proportions. Ethyl D-α-amino-p-hydroxyphenylacetate hydrochloride is prepared by esterifying D-α- amino-p-hydroxyphenylacetic acid by a conventional Fischer-Speier reaction. D-α-amino-p-hydroxyphenylacetamide is prepared by converting sodium D-α-(1-methoxycarbonylpropen - 2 - yl)amino - p - hydroxyphenyl acetate to the mixed ethoxyformic anhydride, reacting this anhydride with ammonia under anhydrous conditions to give D-α- (1-methoxycarbonylpropen - 2 - yl)amino - phydroxyphenylacetamide, and removing the N- protecting groups by acid hydrolysis. S - Ethyl - D - α - amino - p - hydroxyphenylthioacetate hydrochloride is produced by reacting D-α-amino-p-hydroxyphenylacetyl chloride with ethyl mercaptan. Reference has been directed by the Comptroller to Specification 978,178.
Patent GB-543935-A (GB)
Title: Improvements in or relating to electric switches and relays
IPC: H01H1/08
Filed: 1941-06-09
Abstract: 543,935. Switch contacts; electromagnetic switches. ELECTRICAL RESEARCH PRODUCTS, Inc. June 9, 1941, No. 7264. Convention date, June 15, 1940. [Class 38 (v)] A contact 6 of an electric switch is covered with a film of mercury 8 or other conducting liquid obtained by capillary attraction from a pool of mercury 9 into which a portion of the contact dips. The contact must be of a material " wet " by mercury and may be of iron, platinum, nickel or copper. Fig. 1 shows the invention applied to the fixed contact 6 of an electromagnetic switch having pole pieces 13, 14 and an armature 2 carrying the movable contact 5. The armature consists of a thin concave strip with saw-cuts at the upper end to make it flexible there. Owing to repeated engagement of the contacts, a thin film of mercury becomes transferred to the movable contact 5 also. In a modification, Figs. 7, 11 (not shown), the movable contact has a portion dipping into the mercury and other portion which moves between two fixed contacts, thus forming a twoway switch. Fig. 16 shows another form of armature, adapted to pivot about the points 33, 34 and carrying a contact member, portions 37 and 39 of which alternately engage fixed confacts and portion 41 of which dips into the mercury pool. One of the fixed contacts may be a tube through which the container is evacuated.
Patent GB-774903-A (GB)
Title: Improvements in and relating to artificial eyes
Inventor: YOUNG JOHN HORTON
IPC: A61F2/14
Filed: 1954-03-12
Abstract: 774,903. Artificial eyes. ATTENBOROUGH, Ltd., C. & L. E. March 10, 1955 [March 12, 1954], No. 7268/54. Class 81(2) An artificial eye comprises an implant having a magnet or a magnetizable member therein and embedded in the eyeball and a prosthesis having therein either a magnet or is magnetizable when the implant includes a magnet, and a magnet when the implant includes a magnetizable member. An implant 12, Fig. 3, containing a bar magnet 13 is inserted in the natural eyeball from the rear. It is secured by sutures 29 to the sclera 3 and cornea 2 which are laid within a cup formed by a flange 22 of the implant. The conjunctiva is folded over the sutures 29 to seal them. The magnet and the eyelids 6 hold in position an artificial eye prosthesis 15 incorporating a magnetic member 16. The prosthesis can thus be moved naturally with the eyeball by muscular action. The implant has a socket 14 for a manipulation tool 21, Fig. 6. In a modification, a horseshoe magnet is contained in an implant which is flat on the front surface and is inserted from the front of the eyeball. The implants may be made of methyl methacrylate which may be electrolytically coated with gold or painted. The magnets consist of alloys of aluminium nickel and cobalt. The sutures are made from tantalium wire or nylon.
Patent GB-349981-A (GB)
IPC: C09J193/04
Filed: 1930-03-05
Abstract: A thermoplastic cement comprises a mixture of a wax-like halogenated polycyclic hydrocarbon and a natural resinous substance or a product thereof.  Examples of halogenated hydrocarbons are tri- and tetra-chloronaphthalene and chlorinated anthracene.  Suitable resinous substances are resin, shellac, copal, rubber and ester gums. In an example, ester gum, i.e. rosin neutralized with glycerin, is dissolved in an equal weight of molten chlorinated naphthalene comprising mainly a tri- or tetrachloronaphthalene.  An addition of about 5 per cent of rubber latex gives increased tensile strength. In another example 70 parts of copal are added to 30 parts of chlorinated naphthalene.  Preferably a plasticizer, e.g. 10 per cent of castor oil, is included.  Specification 259,409, [Class 22, Cements &c.], is referred to.
Patent GB-644510-A (GB)
Title: Improvements in hectographic duplicating machines
IPC: B41L7/08
Filed: 1948-03-10
Abstract: 644,510. Rotary duplicating machines. BLOCK & ANDERSON, Ltd. (Bonsch, F. R.). March 10, 1948, No. 7385. [Class 100 (ii)] A hectographic duplicating machine includes a damping pad 5 and a pad surface bar 6 between which the sheet to be copied is passed, the pad surface bar being pivotally mounted about an axis 8 lying in a plane substantially parallel to the sheet supporting surface of the bar and extending transversely to the longitudinal direction of the bar. The machine has a sheet-feed table 11 aligned with the upper surface of the bar 6 which, as shown, is L- shaped. The pad 5 is mounted on a lever 15 pivoted at 16 and moved away from the bar 6 by a cam 13 and follower 14 to allow the leading edge of a sheet to be fed. The pad surface bar is pivotally mounted centrally of its length on a rigid bar 7 by a spring-loaded bolt 8. The bar 6 may be spring loaded at one or both ends so that normally it is maintained in a horizontal position. In a modification the bar 6 is of T cross-sectional shape and is pivoted at its centre in a channel section member which may be provided with springs at either end of the bar disposed between the lower edge of the bar and the channel section member. Specification 604,564 is referred to in the Provisional Specification.
Patent GB-679043-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/02
Filed: 1950-03-24
Abstract: 679,043. Sewing machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., GERMANY, N. V., and HAZELTON, G. March 27, 1951. [March 24, 1950], No. 7388/50. Class 112. Chain-stitching by barbed needles; straight needles, driving presser-bars, lifting and locking.-In a barbed-needle shoe-sewing machine, improved means are provided for actuating the needle between a fixed lower position and an upper position which depends on the position of the presser-foot and thus on the thickness of the work, the needle being made to dwell in each extreme position; the mechanism comprises a crank 37 on a driving-shaft 39, a connecting- rod 33 pivoted to the crank and guided so that its other end describes a closed path, and a link 27 connected to a guiding arm 29 and a needleactuating lever 21. In the embodiment shown, the lever 21 is connected by a link 13 to the needle-bar 11 and by a link 23 to the guiding arm 29, which is pivoted at 60 and to which the link 27 is attached directly; the connecting-rod 33 is guided by a block pivoted to it at 47 and sliding in a fixed guide 51. In the uppermost position of the needle, as shown, the link 23 and arm 9 form a toggle, and in the lowest position the links 27, 23 and the connecting-rod 33 lie in a straight line, so that movement of the crank 39 has little effect on the lever 21 in either of these positions; the pivot 60 of the guiding arm 29 is carried on an arm 55 mounted on a shaft 59 connected to the presser-bar, so that the position of the latter affects the position of the pivot 60 and thus the upper position of the needle, while the lowest needle position is unaffected since in that position the pivotal connection between the members 23, 27, 29 is substantially coaxial with the shaft 59. The arm 55 lies between adjustable stop screws 61 on an arm fixed to the shaft 59, which has another arm 65 connected by a toggle linkage 69, 73 to an arm 77 on a shaft 79 having an arm 81 connected to the presser-bar 85; the joint of the toggle linkage 69, 73 is connected by a link 75 to an arm 89 which is rigid with a slotted arm 95 adjustably connected by a link 101 with a cam-actuated presser-lifting lever 103. The shaft 59 is locked when required, so that the arm 65 provides a fixed base for the operation of the presser-bar through the link 75 and toggle linkage 69, 73, by means similar to that described in Specification 21786/02, [Class 112], clamping against a fixed member 117 a segmental extension 113 of an arm 115 connected by a link 111 to an arm 109 on the shaft 59.
Patent GB-605864-A (GB)
Title: A fitting for loading and unloading containers on to and from a vehicle
IPC: B60P1/48
Filed: 1944-04-21
Abstract: 605,864. Hooks. DEMPSTER BROS., Inc. April 21, 1944, No. 7432. Convention date, April 26, 1943. [Class 89 (ii)] [Also in Group XXX] A hook for engaging and retaining a container on a vehicle is pivoted on the vehicle so that when the bail of the container is raised, it engages an edge 67 and rotates the hook clockwise about its pivot 53 against the action of a counter-weight on its arm 44 and then engages a plate 61 to slide it on pins 60 until the bail comes above the projection 56. The hook is now rotated by the counterweight so as to enter the bail and when the latter is lowered, the plate 61 falls and locks it within the hook. When the bail is raised again, it slides the plate 61 upwardly and then engages the edge 68 of lugs 58 to pivot the hook clockwise until the bail moves out of vertical alignment of the plate 61 which then falls to close the hook and prevent re-engagement of the bail.
Patent GB-492275-A (GB)
Title: Transformation of electric relaxation oscillations
IPC: H03K6/02
Filed: 1937-03-16
Abstract: 492,275. Valve generating circuits. RADIOAKT.-GES. D. S. LOEWE. March 16, 1937, No. 7678. Convention date, March 28, 1936. [Class 40 (v)] Saw-tooth voltage is fed to the deflecting plates 8 of a cathode-ray tube from a transformer 6 in the output circuit of a pentode amplifier valve 7, the grid of which is fed with the voltage across the condenser 5. The condenser 3 of the primary relaxation oscillator 1, 2, 3, is discharged through one anode 11 of the double-anode gas-filled valve 9, and this anode is connected to the condenser 5 through a high resistance 4 forming a second relaxation oscillator, the condenser 5 being discharged through the second anode 12 of the valve 9. Both discharges occur simultaneously, and the voltage on the condenser 5 is the time integral of that on the condenser 3. The valve 7 is of high internal resistance compared with the impedance of the transformer, and the current through it is therefore a linear function of the grid voltage. The voltage on the plates 8 is the time differential of the valve current and is therefore of the same wave-form as the voltage on the condenser 3. Specification 483,667 is referred to.
Patent GB-710460-A (GB)
Title: Improvements in or relating to display stands, tables or the like
Inventor: BOTTOMLEY FRANK
IPC: A47F5/11
Filed: 1952-03-26
Abstract: 710,460. Multi-deck stands &c. CASES (HALIFAX), Ltd. Feb. 5, 1953 [March 26, 1952], No. 7707/52. Classes 52(2) and 52(3) A display stand or the like comprises two flat blanks 1, 2 formed with interengaging hooks and slots 1A, 2A and 1C, 2C, the blanks having each three arms 4, 7 which co-operate with means on the underside of shelves 10 to maintain the blanks at right-angles to one another. The tops of the arms may lie in channels or grooves 11 in the shelves or may carry pegs 15 engaging slots or holes in the shelves. According to the Provisional Specification, the blanks 1, 2 may be hinged together.