baber/WOPTO huggingface dataset:
Patent GB-483875-A (GB)
Title: Improvements in and relating to photographic cameras
IPC: G03B17/06
Filed: 1937-02-27
Abstract: 483,875. Photographic cameras. RISZDORFER, O. Feb. 27, 1937. No. 5980. Convention date, Feb. 29, 1936. [Class 98 (i)] In a folding camera having a built-in photoelectric exposure meter, the photo-cell is in a housing on the camera front on which the lens is mounted and is accommodated between one of the spool chambers and the bellows when the camera is closed. As shown in Fig. 1, the cell 13, mounted on the lens carrier 14, is accommodated when the camera is closed, between the spool chamber 21 and the bellows and is adjacent a box 22 fixed in the camera and containing resistances 19, 20, Fig. 6, in series with a measuring instrument, also mounted in the box 22 and having a pointer 16 projecting into the field of view of the view-finder 17. The resistances may be adjusted by contacts 23, 24 and resistances 30, 31 are adjusted automatically by the setting of the diaphragm and exposure time. In a modification the box 22 is mounted beside the cell on the camera front.
Patent GB-1141417-A (GB)
Title: Polyols and polyurethanes produced therefrom
IPC: C08G65/26
Filed: 1966-02-10
Abstract: 1,141,417. Ether- and ester-containing polymers. COLUMBIAN CARBON CO. 10 Feb., 1966 [18 Feb., 1965], No. 5983/66. Heading C2C. [Also in Division C3] A thermoplastic material containing - CO R-COO-units and -[-R-O-]- n H units where R is the residue of at least one anhydride of an organic polybasic acid free of ethylenic unsaturation and containing from 2 to 14 carbon atoms exclusive of the carboxylic carbon atoms, R<SP>1</SP> is the residue of at least one cyclic ether free of ethylenic unsaturation and containing at least one heterocyclic ring comprising one ethereal oxygen atom and from 2 to 5 carbon atoms, and n is an integer, the sequence of units being ordered whereby the -CO-RCOO- units are joined to the residue of an organic starter compound free of ethylenic unsaturation and containing at least two reactive radicals each of which is either an alcoholic hydroxyl radical, a primary amine radical or a secondary amine radical and the -R<SP>1</SP>-0- units are joined to the -CO-R-COO units and/or to the starter residue, the average number (d) of -CO-R-COO- units per equivalent of starter being from 0À05 to 1À0, the average number (e) of-[-R<SP>1</SP>-0-]-units per equivalent of starter being from 0À3 to 2À1 and the ratio of e and d being from 1À5 : 1 to 14 : 1, may be obtained by reacting at a temperature below about 200‹ C. an organic polymerization starter compound with an acid anhydride to form a reaction product which is substantially free of unreacted anhydride, and subsequently reacting said reaction product at a temperature below about 200‹ C. with the cyclic ether, the ratio of equivalents of cyclic ether to anhydride being at least 1À5: 1. In the examples the cyclic ethers used are propylene oxide and epichlorhydrin, the anhydrides used are phthalic, tetrachlorophthalic, succinic and trimellitic anhydrides, and the polymerization initiators used are glycerol, sucrose/glycerol, triethanolamine and ethylene glycol.
Patent GB-672387-A (GB)
Title: Improvements relating to forceps
IPC: A61C3/14
Filed: 1950-03-10
Abstract: 672,387. Dental instruments. HOFFMANN, G. R. March 10, 1950, No. 6057/50. Drawings to Specification. Class 81 (ii). Dental forceps, intended for the extraction of upper molars, have the jaws substantially at right angles to and in the plane of the handles and the jaw nearer the handles formed with its tooth engaging face formed as a double concave surface with a central ridge. The other jaw has a simple concave surface.
Patent GB-473124-A (GB)
Title: Improvements in photographic contact printing machines
IPC: G03B27/16
Filed: 1936-02-28
Abstract: 473,124. Photographic contact-printing apparatus. PRIOU, P. M. Feb. 28, 1936, No. 6079. Convention date, Feb. 28, 1935. [Class 98 (ii)] An automatic contact - printing machine is controlled by a number of switches, the actuation of one of which causes the closure of the circuit of the actuating motor and simultaneously interposes or cuts out resistance in the lamp circuit. The machine comprises a light box, with a shelf 7, an inclined frame 8 and a shutter carrier 9, a glass plate 10 and clip 11 for the negatives, and a stopbar 12 for the printing papers. The carrier 9 has a shutter 16 and is connected through a link 19 to a pivoted and spring-urged pedal 18. A roller on the pedal engages the periphery of a cam 22 which is mounted on the driven shaft 23 of an electric motor and has a finger 35 integral therewith. An adjustable screw 25 on the end of pedal 18 bears upon the arm 26 of the lamp contact 27. The numbered switch knobs each comprise two push-buttons A, B, and over the buttons B lies a flat rod 28 which is connected through links to a shaft 30 carrying the contact 31 of the electric motor and the stop and start pedals 32, 33. A member 36 on the side member 2 carries two sliding rods 37, 38, the lower end of one resting on a pedal 39 pivoted at 40, and the upper end on the clip 11. The upper end of the other rod 38 abuts the under part of the bar 12 whilst its lower end rests on a pivoted link 43 which is engageable by a roller 46 on the cam 22. The pedal 33 carries a roller 34 for engagement with the finger 35 on the cam 22, and is displaceable on the shaft 30 by a lever 50 pivoted at 48. After the negative and printing paper have been placed under the clip 4 and abutment bar respectively, operation of push-button A lifts the button B, the arm 28 and link 29 to connect the motor contacts 31 and introduce the roller 34 into the path of the cam finger 35. The cam in rotating lowers the pressure plate 16 and raises the arm 26 of the contact 27 to light the printing lamp. As the cam rotates further the roller 46 engages the bar 43, the bar 12 is raised, and then the pressure plate 16 releases the printing paper which slides onto a conveyer. The bar 43 is released and the finger 35 contacts with the roller 34 and rotates the shaft 30. This results in a break in the contact 31 of the motor and raises the bar 28 to restore the push-button A to normal position. For continuous printing, the lever 50 is moved to bring the roller 34 out of the path of the finger 35.
Patent GB-1129865-A (GB)
Title: Improvements in or relating to low-pressure mercury vapour discharge lamps
IPC: H01J61/04
Filed: 1966-02-11
Abstract: 1,129,865. Metal-vapour lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 Feb., 1966 [16 Feb., 1965], No. 6099/66. Heading H1D. A current supply lead to an activated electrode 15 in a low-pressure mercury vapour discharge lamp passes through a perforation in a ceramic shielding disc 16 of such thickness in the region of the perforation as to cover at least one quarter of the length of the lead measured between the electrode and a point at which the lead is sealed through the tube wall. As shown, the electrode 15 has two leads and is surrounded by a screen 20 supported by a wire 21 sealed in the pinch 12 of a low-pressure mercury vapour discharge lamp. The disc 16 is held in position by a kink in the wire 21 and has a flange 17 surrounding the pinch 12. In an alternative embodiment (Fig. 1, not shown), the flange 17 is omitted. In a further alternative embodiment (Fig. 3, not shown) the ceramic disc has a peripheral region of reduced thickness and bears against the plane end of a discharge tube envelope.
Patent GB-972719-A (GB)
Title: Improvements in and relating to the surface treatment of articles
IPC: B05B13/02
Filed: 1962-02-19
Abstract: 972,719. Coating surfaces; coating-apparat us. OWENS-ILLINOIS GLASS CO. Feb 19, 1962 [Feb. 20, 1961], No. 6244/62. Heading B2B. An apparatus for spraying part of the external surfaces of a plurality of articles arranged in spaced rows comprises a spray head movable in the general direction in which the rows of articles extend whereby the head may traverse the space between successive rows, and also movable vertically between a lowered or projected spraying position wherein the nozzle of the head is below the upper ends of the articles and an elevated or retracted inoperative position wherein the nozzle is raised clear of such ends, means being provided to ensure that spraying medium is discharged from said nozzle only when the spray head is in the lowered or projected position whereby the upper ends of the articles are kept free of the spraying medium. The apparatus may be used for applying emulsions of silicone resins or polyethylene waxes to preheated glass containers. As shown, a cylinder-and-piston motor 28 controlling the vertical position of a spray nozzle 25 is controlled by a motor control valve 35 which is in turn controlled by a pilot valve 40, operated by a cam follower roller running on a cam rail behind the frame 14 on which the entire nozzle assembly 15 is mounted to reciprocate. The arrangement is such that during transit of the assembly in one direction the nozzle is lowered and operative, while during the return travel the nozzle is raised and inoperative.
Patent GB-179014-A (GB)
Title: Driving mechanism for rope and chain railways
IPC: B61B12/02
Filed: 1921-02-24
Abstract: 179,014. Baum, C. Feb. 24, 1921. Rope railways.-Epicyclic driving-gear is arranged between the two driving pulleys of rope railways to equalize the strain on the pulleys and also act as a reducing-gear without requiring additional gearing to effect the reduction. Fig. 1 shows one arrangement in which a planet pinion 8, carried by one rope pulley 7, gears with the other rope pulley 9. The drive, which is transmitted to the planet arm from the belt pulley 3 through spur gear 4, 5, is taken up partly by the pinion 8 rotating the pulley 9 and partly by the pinion rolling on the pulley so as to rotate the pulley 7 in the reverse direction. As a result, neither of the pulleys rotates at the full speed imparted to the belt pulley 3, and any variaion in the strain is taken up by a proportionate variation in the two movements of the pinion 8. In one modification the pinion 8 gears externally with the pulley 9 instead of internally. Fig. 5 shows a construction in which the two rope pulleys 22, 26 are in alignment on parallel shafts. The drive from the belt pulley 17 through spur gear 19, 20 to the planet pinion 23, is taken up partly by the rotation of pulley 22 and partly by the rolling of the pinion 23 on the pulley as before. The rolling movement is transmitted by a spur train to the other pulley 26. The usual tensioning-roller for the rope is shown at 27.
Patent GB-710265-A (GB)
Title: Improvements in and relating to hot strip coilers
Inventor: WUTSCHER THEODOR
IPC: B21C47/06
Filed: 1951-03-15
Abstract: 710,265. Winding and reeling. LOEWY ENGINEERING CO., Ltd. March 3, 1952 [March 15, 1951, No. 6298/51. Class 83 (4) In a coiler for rolled strip comprising a central rotatable mandrel 12 and inwardly pressed radially displaceable rolls 13-16, interconnections between the rolls for providing simultaneous movement permit limited independent radial movement of the rolls. The rolls are mounted in pairs in carriers 19 supported by links 20 and cranked members 22-25 pivoted on the frame 10, the pivots for the members 22-25 comprising eccentrics 26 adjustable in position and engaged by screws 27 in the members. Pressure is applied to the rollers by fluid pressure cylinders 28 connected to the members 22 and 25 and by spring- loaded sleeves 33 connected to the members 23 and 24. The spring-loaded sleeves 33 permit limited radial movement of each carrier 19 without the other carriers 19 being moved. The coiler has an entry guide 18 carrying a deflecting roller 42 which is moved outwardly together with the rolls 13-16 by links 43, 45 and a pivot arm 44.
Patent GB-1162795-A (GB)
Title: Improvements in Cartons
Inventor: MEIKLE ALFRED DOUGLAS
IPC: B65D5/76
Filed: 1966-02-12
Abstract: 1,162,795. Cartons for dispensing flowable material. WILLIAM THYNE Ltd. 10 Feb., 1967 [12 Feb., 1966], No. 6309/66. Heading B8P. A carton, having an integral internal measuring tube 24, is erectable from a single blank and has a portion tearable to form a pouring spout capable of being closed after pouring to prevent further escape of material. As described, the panels 13, 14, 15 are folded to form the tube 24 and the panels 10, 11, 21 folded to be perpendicular to panel 12, Figs. 2-6 (not shown). The flaps 131, 10<SP>1</SP> are then folded in and the extension 21 stuck to the panel 13. The closure panels 10<SP>1</SP>, 12<SP>1</SP> at the spout end are stuck together and flaps 11<SP>2</SP>, 13<SP>2</SP> stuck to the carton sides. After filling, the other end is similarly closed. To dispense material, tabs 22 and 13<SP>2</SP>, which have been stuck together, are pulled outwardly, breaking tear lines 19, 23 and 27 and pulling out tab 16 about hinge line 17. Simultaneously, tab 13<SP>1</SP> slides out between flaps 10, 12<SP>1</SP> and flap 26, complete withdrawal of tab 16 being prevented by a notch 28. The pulled out parts then define a replaceable pouring spout hingeable about fold line 18.
Patent GB-315299-A (GB)
IPC: E04B1/80
Filed: 1929-02-26
Abstract: 315,299. Rheinhold & Co. Vereinigte Kieselguhr-und Korkstein-Ges. July 11, 1928, [Convention date]. Nonconducting coverings for heot and sound.- In heat and sound insulation consisting of layers of air with separating walls, the walls are composed of comparatively strong and cheap metal such as iron or tin-plate to which metal foil having little radiating capacity, e.g. aluminium, is applied. The foil may be on one or both sides of the metal wall and may be wholly or in part stuck to the metal wall.
Patent GB-1437661-A (GB)
Title: Calciferol derivative
IPC: C07C401/00
Filed: 1974-02-12
Abstract: 1437661 Calciferol derivatives WISCONSIN ALUMNI RESEARCH FOUNDATION 12 Feb 1974 [16 Feb 1973] 06378/74 Heading C2V The invention comprises 22-dehydro-25-hydroxycholecalciferol of formula which has antirachitic activity. The preparation of the material is described.
Patent GB-669482-A (GB)
Title: Improved beet lifting machine
IPC: A01D25/02
Filed: 1949-03-09
Abstract: 669,482. Digging root crops. ANDERSEN, A. K. K. March 9, 1949. No. 6403/49. Addition to 621,987. Class 6(iii). The beet-digger described in Specification 621,987 is improved by the provision of intermediate guide plates 24 between the digging tools 12 and the rotary spinner 14, and by incorporating with the spinner an oscillating feeding member 31 to feed the crop rearwardly to an elevator 53, 54, discharging on to an oscillating screen 57 at its upper end. The machine is towed by a tractor which drives the spinner and elevator through gearing. The guide plates 24 are approximately triangular and are carried by the tool-holding standards 10. The member 31 comprises a cylinder 30 eccentrically mounted on the spinner spindle 13 and carrying rods which extend obliquely to the edge of an opening 20 in the frame. Beets pass through the opening 20 and fall into a trough 40 through which runs a conveyer comprising endless chains 53 carrying cross-members 54. The upper chain-sprocket 51 incorporates a cam 61 actuating the shakerscreen 57 through a pivoted bell-crank 62. The spinner comprises two discs, each carrying a series of radiating rods 80. The upper disc 71 is fixed to the axle and the lower disc 72 is both rotatably and axially adjustable in relation to it. The upper disc carries tongues 85, 86, 87 of various lengths in sets along its periphery and, by rotation of the disc 72, any set of tongues may be engaged with grooved members 88 on the lower disc to set the rods 80 at various spacings both vertically and radially.
Patent GB-476278-A (GB)
Title: Improvements in milling and like machine tools
IPC: B23C1/10
Filed: 1937-03-04
Abstract: 476,278. Milling-machines. GRAVES, B. P. March 4, 1937, No. 6425. [Class 83 (iii)] A milling or like machine. provided with a rigid, hollow upright standard, has a fixed overhang 21, Fig. 1, integral with and extending outwardly from the upper portion of the standard, a rotatable spindle, and a number of bearings for the spindle, one of these being located in the overhanging portion supporting the spindle close to its forward extremity. Three bearings 27, 28, 29, Fig. 4, are provided for the spindle, the bearing 27 being located in the overhang ; oil conduits 40 are provided to return the oil, used in lubricating the spindle bearings, to the interior of the casing. The overhanging support enables short arbors to be utilized, the work table passing underneath the overhang, and gives increased support to the spindle and the overarms 23 ; it also facilitates the use of a milling-attachment which may be bolted to the forward face 30 of the overhang by means of bolt holes 37 provided in lugs 36, Fig. 3.
Patent GB-1413985-A (GB)
Title: Refractory magnesia
IPC: C04B35/03
Filed: 1972-02-11
Abstract: 1413985 Refractory magnesia; refractories STEETLEY (MFG) Ltd 31 Jan 1973 [11 Feb 1972] 6473/72 Headings C1A and C1J The invention comprises a refractory deadburned magnesia containing lime, silica in an amount less than 0À2% by weight, based on the amount of magnesia R 2 O 3  materials in an amount less than 0À5% by weight, based on the weight of magnesia, and zirconia in an amount of from 0À05 to 5% by weight, based on the weight of the magnesia, the amount of lime in the magnesia being from 0À2 to 1À5% by weight, preferably from 0À2 to 1%, by weight, based on the weight of the magnesia, in excess of the weight of lime required to ensure a CaO : ZrO 2  mole ratio of 1 : 1. "R 2 O 3  materials" is used with its usual significance to denote predominantly materials of the group Al 2 O 3 , Fe 2 O 3 , Cr 2 O 3 , B 2 O 3  and Mn 2 O 3 . The zirconia may be incorporated into the caustic magnesia, prior to dead-burning, by adding zirconia itself or zirconium compounds such as the carbonate, hydroxide, sulphate, nitrate, zirconium, ammonium carbonate or zirconium sodium carbonate. The magnesia can be that obtained by the process described in Specification 1378383. Examples are given of materials containing 91À93 to 98À83% of MgO and 0À3 to 0À9% excess MgO and also of comparison products not containing excess CaO. Reference has been directed by the Comptroller to Specification 1,108,396.
Patent GB-938229-A (GB)
Title: Improvements in or relating to magnetic memory devices
IPC: G11C7/00
Filed: 1960-02-24
Abstract: 938,229. Circuits employing bi-stable magnetic elements. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 24, 1960 [Feb. 26, 1959], No. 6480/60. Class 40 (9). [Also in Group XXXV] A filament M 1  of electrically conductive magnetic material having a rectangular hysteresis loop is controlled by currents in the filament and in the windings B 1 , B 2 , B 3 . Twistor storage elements constituted by portions of the filament crossed by the control conductors are decoupled by conductive rings K 11 . A number of filaments M 1 , M 2 , M 3  with common control windings B 1 , B 2 , B 3  form a storage matrix. The filament M 1 , M 2 , M 3  may be twisted to form a preferential direction of magnetization following helical lines with a pitch at 45 degrees to the axes of the wire. Alternatively, the filaments may be wound on to electrically conductive cores.
Patent GB-1212087-A (GB)
Title: Improvements in or relating to conduit couplings
IPC: F16L37/256
Filed: 1968-02-09
Abstract: 1,212,087. Pipe couplings. ROBERT BOSCH G.m.b.H. 9 Feb., 1968 [11 Feb., 1967], No. 6557/68. Heading F2G. A pipe coupling, particularly for connecting a compressed-air base in two-conduit air braking systems, comprises a body 2 of generally cupshape and adapted to support a seal 22, for engagement with a similar seal on a mating coupling head (not shown), and also being formed with a coupling claw 4 which on rotation of the body about the axis 6 engages a similar claw formation on the mating coupling head, and a tubular connecting member 7 which is arranged substantially at right angles to the axis 6 and is connected by welding or soldering to the body 2. The connecting member has a bulge 8 to facilitate the securing of a hose to its free end. In the embodiment of Fig. 1, the connecting member is fitted in an aperture in one side of the cup formation in the body 2 and is further supported in an aperture in a bracket 12 having a flange 13 parallel with a surface 11 of the body 2, the parts 2, 12 and 7 together with a metal retaining ring 19 for a flange 21 of the seal 22 then being gas soldered together in a single operation, the flange 13 being soldered to the surface 11 on opposite sides of a raised central portion which accommodates a spring clip 16 having one end which projects through an aperture 17 in the claw 4 to engage the mating claw for locking the coupling. In a second embodiment (Figs. 3 and 4, not shown), a strap (35) replaces the bracket 12 and the spring clip (39) is a plate spring carrying a locking bolt (41). In the embodiment of Fig. 5, the tubular connecting member 57 is closed at the coupling head end and is flattened at least on the side facing the cup-shaped body 52, which has a mating flat surface 54. The body and connecting member, also an annular seal retaining member (not shown), are then soldered together, mating apertures 55, 58 in the body and connecting member providing for the flow of air from the coupling head to a hose which is secured via screw-threaded end 56 to the connecting member. In the further embodiment of Fig. 8, the seal 64 is retained by an apertured plate 68 which is integral with the claw and is soldered to a body 62 which is formed with an`upturned flange 67, the connecting member 66 being supported in apertures in the body and flange prior to the parts 62, 66 and 68 being soldered together. Welding instead of soldering may be used.
Patent GB-973041-A (GB)
IPC: G03B27/52
Filed: 1962-02-20
Abstract: 973, 041. Photographic printing apparatus. AGFA A.G. Feb. 20, 1962 [Feb. 25,1961], No. 6594/62. Heading G2A. A projection printing apparatus has a fixed negative stage, an adjustable positive easel, and a fixed focusing screen separate from the positive stage, means being provided for producing an image on the screen which automatically remains optically equivalent to that produced on the positive easel whatever the position of the latter. In the form shown, light from a source 4 passes through a system of optical elements 5, 6, 7, 8 to pass through the negative at 10. After passing through the objective 11, which is housed in a vertical guide 12, the light beam falls on the positive easel 14. This is housed in a box-like carrier 13 which can be moved vertically along a threaded spindle 20, its two extreme positions being shown in full lines and broken lines. Also housed in carrier 13 is an inclined partly transparent mirror 16 which reflects some of the light to a measuring device 18, 19. Just above the objective 11 is another inclined mirror 37, which, together with two further inclined mirrors 35, 36, constitute a system for reflecting part or all of the printing light beam on to a fixed inspection screen 38. The mirrors 35, 36 are mounted in a carriage 33 which can be moved horizontally by means of a threaded spindle 27. Spindles 27 and 20 are coupled together by bevel gears 30, 31 so that both spindles rotate together when driven by motor 23. The relative pitch of spindles 20, 27 is such that the distance a moved through by carrier 13 is twice the distance b moved through by carriage 33. Thus the light path between negative plane 10 and positive plane 14 is always equal to the light path between negative plane 10 and screen 38, whatever the position of plane 14. Focusing of the objective 11 may be effected by attaching a bracket 42 to the objective, a pin 41 at the end of the bracket riding on a cam surface 40 on a plate 39 fixed to the carriage 33.