baber/WOPTO huggingface dataset:
Patent GB-210471-A (GB)
Title: Improvements in and relating to reflex cameras
IPC: G03B19/12
Filed: 1922-08-05
Abstract: 210,471. Mathews, R. G. Aug. 5, 1922. Cameras, reflex. - A folding baseboard bellows camera has a small reflector arranged outside the bellows nose which is slidably connected to the lens panel, so as to allow the reflector to be aligned with the lens axis for focusing, and moved away for exposure. In one form, the mirror 1, Fig. 1, is hinged to the bellows nose 6, and a focusing screen 3 is supported by a hinged frame 3<a> and folding links 3<b>. Exposure is effected by the bellows nose on rising. In a modification, the screen 3, Fig. 4, and mirror 1, are pivotally supported from side pieces 10<a> of a sliding panel 10 which moves with and is an extension of the bellows nose 9 which is operated by a lazy tongs 12. The focusing screen 3 and mirror 1 fold into the back of the extension 10 which folds into the camera back. The free end of the screen 3 is adapted to hook over a rail 11 or the like at the upper part of the extension 10. In a further form, the focusing screen 13, Fig. 9. which is of oiled silk or other flexible material extends from a spring-controlled storage drum 20, mounted on the lens panel 15, over a roller 19 and is stretched on a collapsible frame 14 supported on the lens panel and provided with a rack and pinion 17, 18 for elevating and lowering the roller 19 and frame 14. The movement of the bellows nose is effected by a spring catch and release device.
Patent GB-731380-A (GB)
Title: Improvements in or relating to strips of fibers united by adhesive
IPC: D02G3/40
Filed: 1952-08-27
Abstract: 731,380. Yarns of fibres bonded by adhesive. ABERFOYLE MANUFACTURING CO. Aug. 27, 1952 [Sept. 11, 1951], No. 21535/52. Class 120(3). Fibrous strips suitable for twisting into yarns, are produced by applying fibres to strips or a sheet of adhesive, setting the adhesive, removing the excess fibres and in the case of the sheet cutting it into strips. In one form, strips of adhesive are laid on a rotating drum 15 from nozzles 17 associated with a receptacle 18 provided with a heating coil 19. Continuous filaments of nylon or the like may be embedded in the adhesive strips. Fibres from a hopper 21 are fed onto the drum 15 by feed rollers 22 and are pressed into the adhesive by a rubber or felt covered roller 23. Setting of the adhesive is then carried out by means of a device 25 and excess fibres are brushed off and carried away by a suction conduit 28. The strands of fibres taken from the drum 15 may then be twisted by conventional means. Softening of the adhesive before twisting may be effected by a device 34. Drafting may be carried out by means of rollers 29. In another embodiment, the drum 15 rotates in a bath of adhesive and a mat of fibres the full width of the drum is pressed upon the adhesive taken up by the drum. After setting the adhesive and removing excess fibres, the mat of fibres is cut into strips. Cotton, flax, silk, wool, rayon or synthetic fibres may be used. Suitable adhesives are solutions of starch, glue, viscose gums, resins and alginates, gelatine and casein that can be made insoluble in water by treatment with formaldehyde, rubber latex or synthetic rubbers soluble in benzene, thermoplastic materials, such as cellulose acetate, thermosetting materials, such as urea formaldehyde and adhesives soluble in alcohol. After the fibrous strips have been formed, the adhesive may be removed. Specification 731,381 is referred to
Patent GB-332058-A (GB)
Title: Improvements in valve bags for cement or other powdery or granular materials
IPC: B65D30/24
Filed: 1929-07-12
Abstract: 332,058. Merrick, W. A., and Frost, C. T. July 12, 1929. Paper bags; sacks.- A valve bag is provided with two passages. which may be formed as at i and j, one for inlet of material and the other for air escape. arranged in such a manner that the entering material cannot pass directly into the air - outlet passage. These passages are preferably formed as tubes, open at both ends, and arranged so that their inner ends overlap. They may be fitted to the folded-in corners of the bag as shown, the edges of the folded tubes being conveniently sewn to the upper edges by a line of stitches h through a strengthening piece f. In a modification, the two passages may be formed from one piece of material by folding upwardly and in oppositedirections two lateral extension pieces.
Patent GB-468585-A (GB)
Title: Improved means for removing stuck pipe or the like from well bores
IPC: E21B31/12
Filed: 1936-08-05
Abstract: 468,585. Borehole apparatus. BOWEN, G. W. Aug. 5, 1936 No. 21588. [Class 85] Means for removing stuck pipes &c. from a well bore comprises a member with a spiralled tapering seat and a spiralled flexible gripping jaw on the seat. In a spear type tool, Fig. 1, a mandrel 2 is secured to a rounded guide 4 and has a downwardly flared spiral seat 7 ; an expansible spiral serrated jaw 8 rides on the seat 7 and is provided at its upper end with a lug 10 fitting loosely in a notch 9 in a stop 5 welded &c. to the mandrel. The tool may be released from a stuck pipe &c. by rotation of the mandrel. In a tool of the overshot type, Figs. 3 and 5, an upper part has an inner spiral seat 14 supporting a spiral jaw 16 with a lug 41 engaging a groove 42 ; below is a further spiral seat 15 of larger diameter and supporting a similar spiral jaw 17. Between these parts is a floating two-part cage 20 with an outer packing 22 with flared lip 23, and with a lower packing 24 provided with a dovetail holding part 25 and an inwardly curved lip 27. If the stuck pipe 18 carries a coupling 19, this is gripped by the jaw 17 and the packing lip 27 fits in the upper end of the coupling so that wash water may be passed down through the pipe 18. If no coupling is present, the pipe passes up to be gripped by the jaw 16, folding the packing 24 upwardly so as again to give a seal against leakage of wash water. In a further form, a third and larger gripping section is provided for co-operation with a large tool joint, a further packing ring being provided in this section which terminates below in a bellshaped guide to steer the tool over the stuck pipe.
Patent GB-502232-A (GB)
Title: Improvements relating to glass roofings
IPC: E04D3/08
Filed: 1938-07-20
Abstract: 502,232. Glazing roofs. BRIGGEN, H. July 20, 1938, No. 21598. [Class 20 (iii)] A glass roof having overlapping panes in which the overlapping pane 2 of one pair butts the underlying pane 3 of the adjacent pair but is offset in the direction of the joint and the other panes of the pairs 1, 4 project in opposite directions over the joint so that no more than three panes are superimposed at one point is characterised in that the panes have lateral fillets 1<1>, 21, &c. which face each other with interposed bearing members 6 when the panes are laid. The astragal is stepped so that the pane 2 has its edge level with that of the pane 3. Clips 7 secured by double hooks 8 connect the panes 2, 4. A clip 9 bolted to a bracket 10 on the astragal secures the upper edge of the pane 2. A double-bent end stop 12 is bolted to the astragal and springs 13 arc interposed to press down the panes. The ridge caps 14 are held by hooked bolts 16 engaging webs 15 and wing nuts 17.
Patent GB-259352-A (GB)
Title: Improvements in hearse rails
IPC: A61G21/00
Filed: 1925-08-29
Abstract: 259,352. Mortiboys, T. E., and Read, W. Aug. 29, 1925. Hearses. - Supports 3 are provided to embrace the hearse rails 4 and to lock them adjustably in position. The supports are provided with split collars 5 which are adapted to be tightened up by grubscrews to hold the rails 4. Where a depressed rail 9 is provided, it is held by members 8 having split collars 10 at each end thereof. A centre support 11 with split collar 13 may also be provided.
Patent GB-532696-A (GB)
Title: Improvements in or relating to electric timing apparatus
IPC: H03K5/04
Filed: 1939-07-26
Abstract: 532,696. Electromagnetic switches; switching systems. IGRANIC ELECTRIC CO., Ltd., and TOWNSEND, P. W. July 26, 1939, No. 21707 [Class 38 (v)] [Also in Group XXXV] In a system such as described in Specification 519,192 in which the opening of normally-closed contacts 7c causes the discharge of a condenser 4a through the winding 3c of a relay till, after a time interval, the current through the winding 3c is insufficient to hold the armature of the relay attracted and the relay moves to its other position, the time delay is varied bv varying the voltage to which the condenser is initially charged. This is effected by moving an arm p over a resistance 9a connected as shown. The winding 3c is the equivalent of the winding 3c in Fig. 1 of Specification 519,192. In modifications, the alternative discharge path for the condenser through resistances r1 and r2 is prevented by the provision of a switch immediately to the right of the resistance rl which opens simultaneously with switch 7c; or a rectifier may be used. The resistance r2 may also be varied simultaneously with the movement of the arm p.
Patent GB-675633-A (GB)
Title: Improvements in or relating to servo-control devices
IPC: G05G15/00
Filed: 1950-09-04
Abstract: 675,633. Clutches. SALOMON, F. M. M. B. Sept. 4, 1950 [Sept. 3, 1949; March 18, 1950; June 3, 1950], No. 21764/50. Class 80 (ii). [Also in Group XXXIV] An inertia disc 17, Fig. 1, is frictionally carried by a tiltable hub 14 secured on a transverse pin 12 pivoted in a sleeve 11 forming an extension of a driving shaft 1, the pin 12 having a cam surface E cooperating with a projection F on a member G slidable in the sleeve 11 and connected by a pin H to the clutch-operating collar I of a plate clutch M disposed between the sleeve 11 and a driven shaft 2. Disc 17 normally rotates with hub 14 and, due to the inertia forces, tends to move clockwise into a position normal to the sleeve 11, thus moving collar I to the right to cause the clutch to engage against the action of disengaging springs U, this action taking place above a predetermined speed. To produce disengagement, disc 17 is braked by application thereto of a brake shoe A, whereupon the inertia forces are reduced sufficiently to allow the springs U to disengage the clutch. In the construction shown in Fig. 9, the inertia member 17a, 17b carries pins 30 engaging guides 31 on a disc 32 to which a brake band 33 is applied for disengagement of the clutch; while a cam member 50, fixed to hub 14, co-operates with a roller 51 on the clutch-operating sleeve 21 to cause engagement of the clutch. Alternatively, the member 17a, 17b may be pivotally mounted in a gimbal ring itself pivoted in a ring adapted to be braked, and the hub 14 may carry a pin pivotally carrying an eccentric engaging a recess in the clutch-operating sleeve to cause clutch engagement. To enable shaft 2 to drive shaft 1, when required, a one-way clutch may be arranged between the shafts 1 and 2 so that shaft 2 can drive shaft 1 directly; or oppositely-acting one-way clutches may be arranged between shaft 1 and sleeve 11 and between sleeve 11 and shaft 2, so that sleeve 11 is driven by either shaft and either shaft can drive the other through the clutch; or, as shown in Fig. 9, a member 67 secured to shaft 2 has ratchet teeth co-operating with complementary teeth on a loose pulley 69, so that, by applying a brake band 70 to the pulley 69, the latter is cammed to the left and, through a collar 72 and push rods 73, moves the sleeve 21 to the left to engage the clutch. The clutch may be electromagnetically- or fluidoperated.
Patent GB-695967-A (GB)
Title: Improvements in hinge fittings for pivoted members
IPC: A47K13/26
Filed: 1950-09-04
Abstract: 695,967. Hinges. STEAD, C. Sept. 4, 1951 [Sept. 4, 1950], No. 21791/50. Class 65 (ii) A pivot device for a movable member comprises a shaped block 24 having two faces disposed mutually at right angles and an angular recess opening into the faces, and an angular bent rod 27 engaged in the recess and projecting from both the faces, one projecting part serving as a pivot and the other serving to hold the block to a fixed support-surface. As shown, the device serves as a mounting for the seat 8 and cover 11 of a lavatory pan, the cover being formed with a central lug 10 disposed between spaced lugs 9 formed on the seat. The lugs are mounted on a tubular pivot 16 the ends of which are supported by the horizontally projecting ends of a pair of rods 27. The opposite end of each rod projects through an elongated aperture 25 adapted to render the block laterally adjustable, and is provided with a wing nut 14 for clamping the block to the lavatory pan. In a modification the horizontally projecting end of the rod 27 is hollow to receive a solid pivot.
Patent GB-697841-A (GB)
Title: Improvements in or relating to internal-combustion engines mounted in vehicles
IPC: F01L13/00
Filed: 1949-08-23
Abstract: 697,841. Starting; valves and valve-gear; cylinders. LOWE, P. A., and LOWE, B. Aug. 22, 1950 [Aug. 23, 1949], No. 21821/49. Classes 7 (ii), 7 (v) and 7 (vi) A spring-loaded valve 13 in each cylinder may be temporarily held open to allow air compressed in the cylinder during enginebraking to pass through a check valve 38 in a pipe 43 to a receiver 44, the compressed air in which can be automatically re-admitted to the engine cylinders during a stage of the piston operation which is determined by the setting of a single angularly-adjustable member. The valves 13 are opened in succession, in a multicylinder engine, by cams 33 on a manually rotatable shaft 32 and each valve stem 20 is housed in a valve-guide 27 passing through a cylinder head cooling chamber 18 and held in position by a cap 22 bolted thereto and carrying a guide member 23. The check valves 38 may, when desired, be opened and closed in timed relation with the piston strokes so that the compressed air in the receiver 44 may be used for supercharging or for starting purposes. A bellcrank lever 47, actuated by a cam 51 driven by a chain gear 53, Fig. 2, from the engine cam-shaft 54, normally idles in a slot 49 of a member 48 attached to the valve 38. The lever 47 and cams 51 are carried by a lever 55 which may be moved angularly. about the shaft 54'to bring the lever 47 into a position to cause, timed opening of the valve 38. When the engine is under heavy load, the valve 38 is brought into operation to supply compressed air to the cylinder during the compression strokes for supercharging, the valve 13 being opened by the compressed air. For starting, the input sprocket of the chain drive 53, which is helically splined to shaft 54, is moved endwise by a lever 57 which re-times the cams 51 so that the valve 38 is actuated to supply starting air to the cylinders on their working strokes. In a modification, Fig. 3, the pipes 58 leading from the valves 13 are connected to a rotary valve 61 having ports 63 which connect the pipes 58 in succession to a pipe 69 leading through a check valve 73 to the receiver 44. The valve 73 may be opened manually to allow air to be supplied to the cylinders, a sleeve 66 around the valve 61 being angularly adjustable by a lever 68 to time the valve to supply the air for supercharging or for starting. Means are preferably provided connecting the shaft 32 to a fuel control lever to shut off the fuel supply when the engine is being used for braking, and the adjusting'levers 57, Fig. 2, and 68, Fig. 3, are preferably interconnected with the shaft 32 so that they cannot be operated when the valves 13 are open during engine-braking.
Patent GB-910778-A (GB)
Title: An improved wheel-chair
Inventor: LOBLE RONALD FREDERICK
IPC: B60B33/02
Filed: 1961-06-16
Abstract: 910,778. Wheelchairs. LOBLITE Ltd. June 16, 1961, No. 21827/61. Class 108(1). A collapsible wheelchair comprises a carriage 1 mounted on wheels 3 and provided with releasable fastening devices 10 which engage the transverse members forming part of the legs of the collapsible chair B. The carriage may also be provided with longitudinal runners which accommodate the slidable footrest 7.
Patent GB-750175-A (GB)
Title: New quinazoline derivatives
Inventor: SPINKS ALFRED
Filed: 1953-08-07
Abstract: The invention comprises compounds of the formula <FORM:0750175/IV(a)/1> wherein R1 and R2 each stand for hydrogen or for an alkyl radical of not more than 6 carbon atoms, X stands for hydrogen or for an alkyl radical of not more than 3 carbon atoms, Y stands for hydrogen, halogen or for an alkyl radical of not more than 3 carbon atoms and Z stands for the group NHR3, wherein R3 stands for hydrogen or for an acyl radical and is located at position 7 or 8 of the quinazoline ring system.  Such compounds are obtained by the reduction of compounds of the formula <FORM:0750175/IV(a)/2> wherein the nitro group is located at position 7 or 8 of the quinazoline ring system, the reduction product being subsequently acylated if necessary.  The reduction can be effected by the use of stannous chloride or of metallic powders such as iron, tin or zinc, in an aqueous acid medium.  In examples: (1) 4-amino-7-nitro-quinazoline is reduced with iron powder in dilute hydrochloric acid to 4:7-diaminoquinazoline; (2) the product of (1) is reacted with acetic anhydride in glacial acetic acid to give 7-acetamido - 4 - amino - quinazoline.  In other examples there are prepared (3) 7-amino-4-methylaminoquinazoline; (4) 7 - amino - 4 - dimethylaminoquinazoline; (5) 7 - amino - 4 - ethylaminoquinazoline; (6) 7-amino-4-isopropylaminoquinazolines; (7) 7-amino-4-n-butylaminoquinazoline; (8) 7-acetamido-4-n-butylaminoquinazoline; (9) 4:8-diaminoquinazoline; (10) 6-chloro-4:8-diamino-quinazoline. Also mentioned are 4:7-diamino-2- and 6-methyl - quinazolines, and 4 - amino - 7 - butyramidoquinazoline.  The 4 - methylamino - 7 - nitroquinazoline is prepared by reacting 4-chloro-7-nitroquinazoline with aqueous methylamine.  Similarly obtained are 7-nitroquinolines with the 4-substituents specified in the above examples.  4 - Amino - 8 - nitroquinazoline is obtained by heating 4-chloro-8-nitroquinazoline with phenol and ammonium carbonate and heating the resulting product with sodium acetate at 140-150 DEG  C.  4 - Amino - 6 - chloro - 8 - nitroquinazoline is prepared by reacting 3-nitro-5-chloro-anthranilic acid with formamide to give 6-chloro-4-hydroxy-8-nitro-quinazoline, which is treated with phosphorus pentachloride to give 4:6 - dichloro - 8 - nitroquinazoline.  This compound heated with phenol and ammonium carbonate gives 6 - chloro - 8 - nitro - 4 - phenoxyquinazoline, heating of which with ammonium acetate gives the required product.
Patent GB-1466452-A (GB)
Title: Production of heat resistant synthetic resin tubes
IPC: H01B7/29
Filed: 1974-05-16
Abstract: 1466452 Tubular films FURUKAWA DENKI KOGYO KK 16 May 1974 [16 May 1973 25 Jan 1974] 21851/74 Heading B5B Seamless heat resistant resin tubes of wall thickness less than 0À3 mm. are prepared by applying a varnish comprising at least one precursor selected from precursors of imide group-containing resins, of non-linear polyesters, of polyhydantoin, of polyimidazopyrrolone and of parabanic acid to a metal wire, curing it to form a resin layer, drawing the resin coated wire above the yield point of the metal wire and separating the tube from the wire. The tubes may be in the form of laminates by applying two or more coats of varnish or wires may be laid side by side and coated to form a plurality of tubes in side by side relationship. The metal wire is preferably copper which may also be treated, e.g. with a silicone to assist removal of the wire after stretching.
Patent GB-672584-A (GB)
Title: Scarifier tooth attachment
IPC: E02F3/815
Filed: 1950-09-05
Abstract: 672,584. Scarifiers. SMALL, E. T. Sept. 5, 1950 [July 3, 1950], No. 21871/50.- Class 107 A scarifier tooth pivotally mounted at 40 in a housing secured to the back of a bulldozer blade may be biassed by a spring-loaded plunger 70 so as always to be urged to lie in a plane that is substantially normal to that of the pusher arms of the blade. The plunger can be made inoperative by being held in a position clear of the end of the shank 36 of the scarifier tooth 35 by a pivoted catch 100.
Patent GB-981092-A (GB)
Title: Pharmaceutical compositions containing quaternary ammonium compounds
Inventor: COPP FREDERICK CHARLES
IPC: A61K31/14
Filed: 1960-06-23
Abstract: Quaternary ammonium compounds having a cation of general formula <FORM:0981092/C2/1> wherein R1 and R2 are methyl, ethyl or 2-hydroxyethyl groups, are prepared by quaternization of an appropriate tertiary amine (which may be prepared in situ from secondary or primary amines), optionally followed by double decomposition of the salts.ALSO:Pharmaceutical compositions comprise quaternary ammonium compounds containing a cation of general formula <FORM:0981092/A5-A6/1> wherein R1 and R2 are each a methyl, ethyl or 2-hydroxyethyl group and pharmaceutically acceptable carriers in discrete units each containing a predetermined amount or concentration of the drug.  Compositions in general are described in the form of tablets, powders, granules, capsules, cachets, syrups, suspensions, emulsions, solutions, suppositories and pessaries.  The compounds depress sympathetic nerve function.
Patent GB-879282-A (GB)
Title: Steam superheat boiling water nuclear reactor
IPC: G21C5/22
Filed: 1960-06-23
Abstract: 879,282. Nuclear reactors. NORTH AMERICAN AVIATION Inc. June 23, 1960 [July 3, 1959], No. 21966/60. Class 39(4). The core of a boiling water reactor contains a boiling region in which the moderator is water and a superheating region in which the moderator is solid. Fig. 1 shows a stainless steel - lined pressure vessel containing an annular boiling region 3 and a central superheating region 2. Water enters at 10, flows through region 3, and leaves via separators 12; steam generated from the water flows through separators 7 and down through region 2 to a header and outlet with double walls between which is saturated steam as thermal insulation. The vessel also contains grid plates 24, 25, 32, 35, thermal shields 15, 16, 17, and control rods 28. Fig. 5 shows insulation 19 between regions 2 and 3, the walls of the regions being separated by corrugated stainless steel and stagnant saturated steam. Fig. 7 shows a superheater fuel element, comprising a spring-loaded bundle of stainless steel clad fuel pins 40 surrounded by solid ZrH 2 , clad in stainless steel, at 41; the fuel pins are joined as shown in Fig. 8. Alternatively the superheating region may comprise a container full of ZrH 2  powder under hydrogen pressure, the container being traversed by fuel tubes. Alternative solid moderators are: graphite, Be, BeO, hydrides or deuterides of Li, Ca, Y, Nb, V, Ta, Ti, Zr; moderator cladding may be Mo, Ti, Ni-Cr alloy, Zr alloy, stainless steel. Clad moderator is made by hydriding of already clad Zr or by co-extrusion, brazing or pressure bonding. The fuel may be U, Pu, alloys with Th, Mo, Zr, Al, or ceramic material including carbides and nitrides; fuel cladding may be Ni, Ti, Nb, alloys of Al or Zr, or Ni-Cr alloy.