baber/WOPTO huggingface dataset:
Patent GB-614339-A (GB)
Title: An improved metal building structure suitable for use as a greenhouse
IPC: A01G9/14
Filed: 1946-07-10
Abstract: 614,339. Greenhouses. MARSHALLS (BOXES), Ltd., and HEARDER, D. W. July 10, 1946, No. 20647. [Class 20(i)] A metal building structure for use as a greenhouse, comprises rectangular side and end frames, a ridge member 13, Fig. 1, and rafters 7, the upper horizontal members 3 of the side frames and the ridge member 13 being of rounded cross-section, the structure being provided with glazed panels 17, Fig. 3, hingedly connected at their upper ends around the horizontal members of rounded cross-section. Each side frame is formed of four uprights 1, Fig. 1, and two horizontal members 2, 3 secured together by welding, and each end frame comprises two horizontal members 9, 10 welded to two uprights 11 and bolted to the side frames by means of gusset plates 12. Gusset plates 5 welded to the uprights 1 provide support for the rafters 7 secured to gusset plates 14 which are welded to the ridge member 13. The members 3, 10, 13 are of tubular form while the other members of the framework are of L-section. Rectangular glazed panels 17, Fig. 3, provided with hooks 18 along their upper edges are hung from the ridge member 13, Fig. 1, and from the horizontal members 3, 10 so that three panels cover each side of the roof, and each side wall and two panels cover the outer rectangles of each end wall. The centre rectangle of each end wall is provided with a similar panel hinged about a vertical axis, and the gable ends filled with panels bolted to the structure. The structure may be extended longitudinally by adding further sections, or two such structures may be erected side by side and provided with outer side extension wings, the inner side panels being supported in a raised position by means of . a central gutter supported on uprights.
Patent GB-476191-A (GB)
Title: Process for the decomposition of cellulosic materials with the aid of hydrogen fluoride to yield products that are of low molecular weight up to the point of solubility in water
IPC: C13K1/02
Filed: 1936-07-25
Abstract: 476,191. Glucose and like carbohydrates. BOHUNEK, J., HOCK, H., and MAYRHOFER, G. July 25, 1936, Nos. 20654 and 20655. Convention dates, Aug. 13, 1935 and March 6, 1936. [Class 127] In the decomposition of cellulosic materials by means of hydrogen fluoride to produce water-soluble products, or products which may be made water-soluble by treatment with dilute acids, the reaction chamber containing the cellulosic material is first exhausted of air, to remove also the air from the cells of the material, and then concentrated hydrogen fluoride is passed in, diluting gases and vapours being absent. The gaseous hydrogen fluoride used in the process may be generated by evaporation of highly concentrated, e.g. 96 per cent, hydrofluoric acid. The decomposition may be initiated with the hydrogen fluoride Lmder reduced vapour density, and completed under increased vapour density, this alternation being repeated if desired. The change of vapour density may be effected by transfer of hydrogen fluoride, or by change of temperature. The reaction may be effected in the apparatus shown, Z<1> and Z<11> being reaction chambers between which the hydrogen fluoride is passed as desired by means of a pump P. Stirrers R, a cooler K, and a reservoir B containing concentrated hydrogen fluoride are also provided.
Patent GB-405007-A (GB)
Title: Improvements in variable-speed transmission mechanisms
IPC: F16D43/16
Filed: 1932-07-22
Abstract: 405,007. Positive clutches ; variable - speed gearing. KELLER, R. E., 670, East Woodbridge Street, Detroit, Michigan, U.S.A. July 22, 1932, No. 20710. Convention date, Aug. 22, 1931. [Class 80 (ii).] The radially-sliding locking-elements of a positive clutch for variable - speed gearing are carried by the driven member and move centrifugally against disengaging-springs, being held in the engaged position, as by undercut surfaces, when the speeds of the driving and driven members tend to differ. The locking-elements have also means for preventing engagement except when the clutch members are substantially synchronized. In the layshaft variable-speed gear shown in Fig. 1, the bottomgear pinion 13 and reverse-gear pair 14, 21 are engaged by a sliding wheel 12 and the constantmesh second speed and direct drive are controlled by a clutch sleeve 27, which is splined to the driven shaft 3 and can occupy, in addition to the neutral position shown, three operative positions. In the extreme right-hand non- automatic position, teeth 28 engage simultaneously teeth 22, 23 respectively on the revolubly-mounted wheel 10 and on a ring 24 connected thereto by a free-wheel roller clutch 26, while in the extreme left-hand non-automatic position, teeth 54 engage teeth 56 on an extension of the wheel 8 secured to the driving- shaft 2. The intermediate position, in which the teeth 28 engage the teeth 23 only and the teeth 54 engage teeth 55, brings into action the automatic clutch 1. This clutch, Figs. 2 and 4, comprises a driving-member 30, coupled to the wheel 8 by a free-wheel roller clutch 34, and a driven member 31 provided with the teeth 55 and carrying in pockets 41 spring-retracted centrifugal members 40. The member 31, through the teeth 54, 55 and sleeve 27, turns with the driven shaft 3, which is rotated by the train 8, 9, 11, 10, roller clutch 26, and teeth 23, 28, and when its speed is sufficiently high, the members 40 move outwardly against the springs 45. Engagement of the noses 47 of the members 40 in apertures 53 of the part 30 is, however, resisted by their bevelled faces 48 until, by decelerating the engine, the parts 30, 31, due to overrun of the clutch 26, are caused to run approximately in synchronism. After engagement of the noses 47 in the apertures 53, their automatic withdrawal on slowing down is delayed by the action of the driving- faces of the apertures on bevelled end faces 51 of the noses. Overrun on top gear, which can be cut out by engaging the teeth 54, 56, is permitted by the clutch 34, the bevelled end faces 50 of the noses 47 then resisting retraction of the members 40. The Specification, as open to inspection under Sect. 91, comprises also statements that the members 40 may be carried by the driving- member and that the clutch may be modified for directly connecting coaxial shafts without the parts 8, 27, as described in Specification 400,174. This subject-matter does not appear in the Specification as accepted.
Patent GB-1307302-A (GB)
Title: Hermetically sealed connectors
IPC: G03B17/08
Filed: 1970-06-18
Abstract: 1307302 Photographic apparatus RICOH KK 30 April 1970 [10 May 1969] 20740/70 Heading G2A [Also in Division H2] An electrical connection between the terminals 13a, 13b of a flash gun unit and the terminals 4a, 4b of a battery unit contained in a watertight case for a camera comprises between each pair of terminals a conducting member, 23a, Fig. 2 formed with blind bores for receiving the terminals 13a, 4a at opposite ends. The conducting member 23a is formed with a central portion of enlarged cross-section, the resin making a watertight seal with the ends of this portion when it shrinks on cooling. The case 14 supports a camera 18, Fig. 1 on brackets 19 and a cylindrical support 20 provided with a rubber end 21. The camera 18 is connected via a plug 9 and wires 7, 8 to the battery unit 1 containing the battery 2, and the case is closed by a transparent synthetic resin cover 16 screwed on to the front. The flash gun unit is attached to the case by a screw 15, the conducting members 23a, 23b being moulded in projections 22a, 22b of the case.
Patent GB-599134-A (GB)
Title: Improvements in image forming optical systems, for use in colour television apparatus or colour photography
IPC: G03B33/16
Filed: 1944-10-25
Abstract: 599,134. Flexible shafts. RADIO CORPORATION OF AMERICA. Oct. 25, 1944, No. 20745. Convention date, Nov. 29, 1943. [Class 80(ii)] [Also in Groups XX and XL] A cable 37 comprises hollow cylindrical sections 113, 105 mounted concentric with a central section 101 each section being independently rotatable about a longitudinal axis by hand-knobs 103, 107, 117 suitable bearing surfaces 111, 115, 121 being provided.
Patent GB-672268-A (GB)
Title: Improvements relating to telemetering apparatus
IPC: G08C19/00
Filed: 1949-08-10
Abstract: 672,268. Electric telemetering systems. MEASUREMENT, Ltd., and HEWLETT, S. J. Aug. 3, 1950. [Aug. 10, 1949] No. 20788/49. Class 40 (i). In a telemetering system wherein a direct current input I, proportional to the variable concerned, is translated into pulses, of a frequency proportional to the D.C. intensity, for transmission, the input 11 produces a voltage drop E1 across a resistor R which is opposed by a voltage E2 derived from a tachogenerator b driven by a servomotor a. The current I2 produced by the voltage difference E1-E2 deflects a coil C (having no restoring spring) in a permanent magnetic field. The coil C through an induction regulator or a capacitor type voltage divider d as described in Specification 648,036, [Group XXXVI], varies the input to a power amplifier e the output 13 of which is applied to the servomotor a in the form of a watt hour meter, the other winding of which is fed from a separate A.C. source. The motor speed is automatically adjusted to a value proportional to the input D.C. I, and operates an impulsing device f to produce pulses at a frequency proportional to speed.
Patent GB-404944-A (GB)
Title: Improvements in or relating to light-metal structures for aeroplane wings or the like
IPC: B64C3/00
Filed: 1932-07-23
Abstract: 404,944. Aircraft planes. BRISTOL AEROPLANE CO., Ltd., and POLLARD, H. J., Filton House, Bristol. July 23, 1932, No. 20798. [Class 4.] An aeroplane wing includes one or more spars having booms of channel form with their open sides outermost and a plurality of ribs connected crosswise thereto and constructed in separate sections each of which is directly connected at its end or ends to a spar. In one form, a wing structure includes spars 10, 11 connected by channel section ribs 12, 13. The leading edge of the wing includes ribs 14, 15 and the trailing edge ribs 16, 17. The ribs are cross braced by members 18. Each spar includes booms built up of corrugated members 20, 21, Fig. 3, and connected by a flat strip metal web 19. The booms are closed in by cover-plates 22 which may be curved to conform to the aerofoil section. The plates 22 are rivetted to the booms and to the ribs, gusset-plates 23 spaced along the length of the spars are each riveted to the web 19 the plate 22 and the ribs. Strengthening ribs may be inserted in the joints between the plate 22 and the members 20, 21, and may be partly cut away and replaced by a continuous skin of thin metal. The cover plates 22 may be replaced by spaced apart ties and the web 19 may be corrugated or lightened, and any of the members may be built up of laminations. The bracing 18 may be omitted and the cover plate 22 may be corrugated. The edges of the booms and the cover plates 22 may be flanged inwardly. Specification 332,568, [Class 4, Aeronautics), is referred to.
Patent GB-238888-A (GB)
Title: Improvements relating to high-pressure steam plants
IPC: F01K1/04
Filed: 1925-08-20
Abstract: 238,888. L÷ffler, S., and Wiener Lokomotiv - Fabriks - Akt. - Ges. Aug. 21, 1924, [Convention date]. Superheating by hot liquids.-In high-pressure steam plants, particularly fire-less locomotives, a superheater 4 is located inside the high-pressure accumulator 1 to a superheat steam passing from a high-pressure engine 3 at constant pressure to a low-pressure engine 6. A steam-drier 2 may be inserted as indicated, Another superheater located within the accumu.. lator may be inserted between the high-pressure ergine and a throttling device. The accumulator 1 is charged before the operation of the plant either from a high-pressure boiler plant, or by heat which may be supplied electrically. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also a modification. wherein an automatic throttling device takes the place of the high-pressure engine 3. This subject-matter does not appear in the Specification as accepted.
Patent GB-427941-A (GB)
Title: Improvements in the elimination of parasites in the reception of radio-electric transmission
IPC: H03G11/02
Filed: 1934-07-17
Abstract: 427,941. Valve circuits for wireless reception. MONGE, G. DE, 7, Rue Emeville, Flostoy, Namur, Belgium. July 17, 1934, No. 20882. Convention date, Aug. 1, 1933. [Class 40 (v)] Parasitic disturbances of greater amplitude than the signals act on means tending to disable the receiver throughout their duration. As shown, oppositely directed diodes A, B, are shunted in series with a resistance R1 between the aerial 1 and earth, the diodes being biassed by the current flowing through resistances ra and rb from the source 4, so as to be non- conducting to signals &c. of less than a predetermined amplitude. Potentials developed across resistance R1 are applied to the grid of a triode N, the anode circuit of which is connected between a point 15, on the signal path between the aerial 1 and receiver 13, and earth. This path includes inductance 11, capacity 9, resistance R3 and capacity 10, the point 15 being a tapping on the resistance R3. The valve N thus tends to shunt away all the input to the receiver when the diodes become conducting. In a modification, Fig. 2, (not shown), a further pair of biassed diodes are arranged between the point 15 and the valve N. The Specification as open to inspection under Sect. 91 comprises also other similar circuits in which biassed diodes are used for initiating a suppressing action. This subject-matter does not appear in the Specification as accepted.
Patent GB-320153-A (GB)
Title: Improvements in or relating to holding devices for use with duplicating stencils
IPC: B41N1/24
Filed: 1928-07-18
Abstract: 320,153. LefÚbure, E., and Chambers, J. E. July 18, 1928. Stencils.-A device holding a stencil sheet in firm contact with a writing plate while the stencil is being cut by means of a wheel pen or a stylus comprises a substantially rigid window-like frame adapted to hold the peripheral edges of the sheet against the plate. The frame is preferably covered on its under surface with a non-slipping material, such as rubberized cotton or linen. As shown, a stencil 2 is clamped against a metal writing plate 4 by means of a metal, celluloid, or cardboard frame 1 of the same outside dimensions as the stencil 2 and having an aperture 3 of the same size as the writing surface of the stencil. The clamping pressure is provided by spring clips 5, 6, one end of each of which may be hinged to the frame, or, alternatively, by hinges, the length of the frame provided with over-centre springs forcing the hinges into either the open or the closed position. The frame may be also hinged to the plate 4 and forced by a spring into the closed position, where it is secured by a catch. The frame may be marked with scales, and a ruler or other writing or drawing aid may be associated with the frame, e.g., a ruler may be held by a spring clip slidable along the clip 5, the ruler extending across the stencil.
Patent GB-617790-A (GB)
Title: Improvements in and relating to tenons and dowels
IPC: E04B1/48
Filed: 1946-07-12
Abstract: 617,790. Dowels; dowelling. VALITON, F. C. July 12, 1946. No. 20915. [Class 89 (ii)l [Also in Group X] Dowels, particularly those of wood, have the hole engaging part 12, Fig. 3, compressed, the free end being further compressed at 14. Grooves may also be pressed in the dowel but these terminate short of the attached end of the part 12. In a modification the dowel is formed originally with an enlarged end 28, Fig. 4, and is compressed to cylindrical form. The dowel is driven into the hole' after application of liquid glue to both parts and the resulting swelling causes the dowel to tend to return to its original shape, forcing the glue into both surfaces.
Patent GB-1313975-A (GB)
Title: Traversing mechanism
IPC: B65H54/28
Filed: 1971-04-19
Abstract: 1313975 Cam follower construction BARMAG BARMER MASCHINENFABRIK AG 19 April 1971 [5 Feb 1970] 20984/71 Heading D1J A traverse guide 8 is mounted on a follower for a rotating drum cam 1, the follower having a shuttle-like groove-engaging portion 4, and a neck portion 7 bearing two circular plates 10, 11 straddling guiderails 5, 6. The outer plate 10 may be tapered as shown, and the follower may be of polyamide one-piece construction, the guide being ceramic.
Patent GB-928560-A (GB)
Title: Process and apparatus for the production of webs of elastic synthetic resins
IPC: B29C48/08
Filed: 1961-06-09
Abstract: 928,560. Casting elastic synthetic resin webs. FARBENFABRIKEN BAYER A.G. June 9, 1961 [June 10, 1960], No. 20988/61. Class 87(2). Webs of elastic synthetic resins are made by pouring liquid resins into a space 5 formed between a conveyer belt 2 passing about a guide roller 3 adjacent to a winding cylinder 4, causing the liquid to solidify and winding the solidified webs on the conveyer belt 2 about the winding cylinder 4. The wound webs may then be heated. A pair of limiting bars 1 of elastic material are provided on the conveyer belt 2, or on the winding cylinder, or are continuously inserted in between the belt and the cylinder, said bars determining the width of the web. Fabric or filament-like reinforcements may be imbedded in the web by passing them into the casting gap 5. The apparatus may be coated with a mould releasing agent e.g. silicone oil to prevent adhesion of the web to the apparatus. An embodiment is described in which the conveyer belt passes over two guide rolls, one similar to the roller 3 above and one situated below the winding cylinder. Specifications 700,608, 700,609, 700,610, 700,611, 769,680 and 769,682 are referred to.
Patent GB-1085578-A (GB)
Title: A new or improved wool holder
IPC: D04B3/06
Filed: 1965-05-18
Abstract: 1,085,578. Roll holders and bags therefor. H. DACHINGER. April 13, 1966 [May 18, 1965], No. 21039/65. Heading A4G. A wool ball holder comprises a flexible strip 1 twisted to form a carrying loop, the strip having slotted interlocking means 3 where it crosses itself to form the loop, and the two strip ends 5 then extending to embrace at least one cross-spindle 10 for the ball. In addition, the spindle may carry spikes 13 with support plates 17 for balls unwound from the centre. The strip ends may also have means supporting a protective bag. The strip may be secured in an inverted-U form.
Patent GB-1449569-A (GB)
Title: Tubular wall structure
IPC: F16L9/16
Filed: 1974-05-13
Abstract: 1449569 Laminated fibre-reinforced resin tubes OVENS-CORNING FIBERGLAS CORP 13 May 1974 [21 May 1973] 21086/74 Heading B5N [Also in Division F2] A tubular wall structure having inner, middle, and outer wall portions comprises a thermosetting resin matrix, a particulate filler and glass fibre material embedded in the resin, the glass fibre material including both randomly oriented chopped glass fibres and continuously wound glass filaments, each of the inner, middle and outer wall portions including both particulate filler and chopped glass fibres, each of the inner and outer wall portions including continuously wound glass filaments; the concentration of the particulate filler being at least as great in the middle wall portion as in the inner and outer wall portions, the concentration of the chopped glass fibres being at least as great in the inner and outer wall portions as in the middle wall portion, and the concentration of the continuously wound glass filaments being greater in the inner and outer wall portions than in the middle wall portion. The resin may be a polyester and accelerator, polyurethane or a type A bis-phenol, whilst the filler may be sand. Compositions of tubular wall structures suitable for use as underground drain pipes, low pressure pipes and high pressure pipes are tabulated. Such structures are also suitable for underground storage tanks. A tubular wall structure of this type is made by applying a thermosetting resin matrix 56 in a fluid state to a continuously rotating cylindrical form, e.g. mandrel 30, distributing chopped glass fibres 58 in random orientation and particulate filler, e.g. sand 60 in the matrix while continuing rotation of the form, meanwhile helically winding continuous glass fibres 64 in the matrix, and then curing the resin. The mandrel 30 may be of the type whose surface is defined by a continuous steel band 32 which travels helically, the edges of successive laps abutting one another. The band 32 is preferably covered by a parting layer of an inert plastic overlapping strip prior to application of the pipe-forming materials. The resin is fed from a resin sprinkler 42 while the chopped glass fibres 58 are supplied from a chopper 40 which is fed by a creel 39. The sand 60 is applied from a hopper 36 through an opening 38, and continuous glass fibres 64 are wound helically from creels 44 through a comb 46. The outer sections of the comb 46 carry a greater number of continuous fibres as shown in Fig. 2 in order to concentrate these fibres in regions adjacent the wall surfaces. As the pipe is built up, the reinforcing and filler materials are distributed over a number of helical layers. Finally, the resin matrix is cured by heating in an oven 66.
Patent GB-962843-A (GB)
Title: Improvements in or relating to methods of and apparatus for producing granulates andthe like from powder substances
IPC: B01J2/22
Filed: 1962-06-01
Abstract: 962,843. Producing granules from powder. E. HUTT. June 1, 1960 [June 2, 1961], No. 21223/62. Heading B5A. Compressed rods of powder material, formed by a rolling compression process, are granulated by co-operating wedge-shaped cutting edges mounted upon contra-rotating, parallel rollers and separated by a distance less than the thickness of the rods which may be of lenticular, orthorhombic, rhomboidal or rectangular crosssection. The cutting blades of one or of both coacting rollers may be circumferentially, axially or helically inclined and a plurality of pairs of rollers may successively be employed with the blade spacing successively halved. The rollers may be axially or radially adjustable and resiliently mounted and provided with blade cleaning strippers. The blades are of hard metal or metal carbide.