baber/WOPTO huggingface dataset:
Patent GB-1479546-A (GB)
Title: Automatic screw-driving machines
IPC: B25B23/04
Filed: 1975-04-21
Abstract: 1479546 Pneumatic screwdriving machines GEDIC SA 21 April 1975 [17 May 1974] 16441/75 Heading B3N An automatic screwdriving machine has a pneumatic motor 4 controlled by air valve 3 and a nose 7 supported by rods 8 slidably carried by body 9. One of the rods acts as a slide valve member in cooperation with annular chambers 18, 19 in the body for controlling admission and exhaust of air under pressure into and from an air conduit 20 for connection to apparatus to be actuated or controlled thereby in response to displacement of the nose. In the particular arrangement, the rod valve controls the operation of a screw-feeding device 12 which feeds screws down conduit 11 into nose nozzle 7a when the nose advances after the previous screw has been driven home and the machine is withdrawn from the workpiece. Annular chamber 19, defined by seals 16, 17 communicates with bore or duct 2b connecting valve 3 and motor 4 by means of a canal 2c which may include a non-return valve to prevent pressure escaping from chamber 19.
Patent GB-683119-A (GB)
Title: Improvements in or relating to lamp-houses for optical picture projectors, particularly cinematograph projectors
IPC: G03B21/20
Filed: 1951-07-12
Abstract: 683,119. Optical projection apparatus. ZEISS IKON AKT.-GES. July 12, 1951 [Nov. 4, 1950], No. 16559/51. Class 97 (i). [Also in Group XL (a)] The lamp-house controls, particularly in a kinematograph projector, are placed at the side of the lamphouse on the operating side of the projector. As shown, controls 6-11 are mounted under the side door 4. Concentric pairs of knobs 6, 7 and 8 control, respectively, lateral and vertical movements of the negative carbon, similar movements of the positive carbon, and rotations of the reflector about horizontal and vertical axes. The knob 9 operates a variable resistance to adjust the speed of the motor which feeds the negative carbon. This speed is also regulated automatically in response to changes of arc voltage. The knob 10 controls the ratio of feed speeds of negative 'and positive carbons, and the pushbutton 11 switches the current supply to carbons and feed motor.
Patent GB-123028-A (GB)
Title: Improvements in Hand Grenades.
Inventor: GIBBONS FRANCIS JOSEPH JAMES
IPC: F42B8/26
Filed: 1918-10-11
Abstract: 123,028. Gibbons, F. J. J. Oct. 11, 1918. Projectiles.-Consists in a dummy hand-grenade, for practice in throwing, comprising a hand-lever A, pivoted as usual at a‹, and acted upon by a platespring C fixed externally to the grenade body at c‹. The striker and the helical spring for actuating it, provided in ordinary grenades, are omitted.
Patent GB-1452290-A (GB)
Title: Rotor for rotary regenerative heat exchanger
IPC: F28D19/04
Filed: 1974-04-16
Abstract: 1452290 Thermal regenerators ADVANCED MATERIALS ENG Ltd 16 Sept 1974 [24 Oct 1973 16 April 1974] 26826/74 and 16607/74 Divided out of 1452289 Heading F4K In a rotary-matrix type thermal regenerator, the rotor comprises a plurality of modules each containing at least one mass of heat transfer material, each module having at least one outer face which is flat or which is, curvilinear, and the rotor having at least one external surface which is either a plain endsurface transverse to the central axis of rotation of the rotor, or which is a curvilinear surface coaxial with said axis and which is formed by like outer nodule faces adjoining one another. The modules are preferably made up of separable parts to allow replacement of the heat transfer material. The heat transfer material may comprise plates (e.g. Figs. 2 and 9) of metal or of a ceramic material such as silicon nitride, a cellular ceramic foam, a mass of ceramic fibres, or a mixture of fibres and porous or particulate material. In one form, Figs. 1 and 4, sector shaped modules 10 are assembled to form a disc-shaped rotor 50 in which the modules are retained in position by an encircling steel band 52. In use, the rotor is in sliding engagement with two fixed seals 54, 56 each shown as having two sets of openings therein for the passage of the heat exchanging fluids (e.g. turbine exhaust gases and air) each flowing in two separate streams to and from the rotor. The module components, Fig. 1, may be made of metal or of a ceramic material such as silicon nitride; or the front cover 14 at the "hot" face of the rotor may be of ceramic material whilst the remaining components are of metal. In the disc-shaped rotor of Fig. 12, sixteen modules 322 (only one being shown) of ceramic material such as silicon nitride are fitted into a rotor housing 312 of ceramic or metal and are held therein by retainer rings 342, 344. Each module 322 comprises open ended sector-shaped box containing the heat transfer material 372 and packings (330, Fig. 11) which permit independent distortion of the heat transfer material. Fig. 10 shows a drum-shaped rotor 200. The stationary seals 316 and 364 (see also Fig. 11) are of a soft ceramic fibre comprising an assembly of sector-shaped modules (Fig. 8) which may be retained in position by an encircling steel band (not shown). In use, the rotor is engaged by seal assemblies 202, 204, the steel band being positioned out of the area swept by the seal assemblies. The rotor drive may be at the rim, or through a hub (not shown); and the ratio of the inside to outside diameters is between 0.4 and 0.6. Fig. 13 shows another embodiment in which the modules are mounted between cylindrical metal or ceramic walls 400, 402 of the rotor shell. Each module comprises an end wall 416 connected to opposed side walls 414, and an end wall 418 sealed by a gasket 420 to the rotor shell. The heat transfer material comprises blocks 430 arranged as shown, the gas flow through the blocks being denoted by the arrows.
Patent GB-1519266-A (GB)
Title: Stabilised photochromic compositions and processes for the use of these compositions
IPC: G03C1/685
Filed: 1976-04-23
Abstract: 1519266 Photochromic substances producing stable images LA CELLOPHANE 23 April 1976 [24 April 1975 28 April 1975] 16611/76 Heading G2C Photochromic compositions whose coloured form is radiation stable consist of a dispersion of an indoline-type spiropyran of the Formula: in which R 1  denotes an alkyl group or a phenyl group, R 2  denotes H, OH ,Cl, Br, NO 2 , methoxy or ethoxy, and R3 denotes H, Cl, Br, NO 2 , methoxy or ethoxy; or a benzothiazole-type spiropyran of the Formula: in which R 1 , R 2  and R3 have the same meanings as above, R 4  denotes an alkyl, phenyl, alkoxy, phenoxy or thioalkyl group and R 5  denotes H or an alkyl methoxy or thiomethyl group, in a binder which is or includes a vinyl chloride polymer or a vinyl co-polymer containing at least 50 wt. per cent of vinyl chloride. The composition not containing any added organic peroxy compounds. A recording element, comprising a support coated with one of the photochromic compositions is imagewise exposed to UV radiation of wavelength 2,000 to 4,000 Š to produce a print out negative image of the original (Examples 1 to 4). Since the colourless spiropyran form is not stabilized in the unexposed areas several images may be superposed on the same recording element. Another form of recording element comprises a support having a coating of a photochromic composition as defined above and polyvinylidene chloride (PVDC) to make up 20 to 80% to which the vinyl chloride polymer or copolymer is applied and penetrates into the coating. Upon imagewise exposing the element to UV radiation of wavelength 1,600 to 2,600 A, HCl evolved during decomposition of the PVDC reacts with the merocyanine produced from the spiropyran to yield a light yellow complex. Upon subsequent overall exposure to UV radiation of wavelength 2,000 to 4,000 Š an intense colouration, due to the formation of the merocyanine is formed in the previously unexposed areas to yield a positive image of the original. Subsequent overprinting is not possible with this element (Examples 5 and 6) If, in a recording element the binder contains, in addition to the vinyl chloride polymer or copolymer, one or more water-soluble polymers such as polyvinyl alcohol of degree of hydrolysis at least 70 mol. %, hydroxy ethylcellulose and carboxymethyl-cellulose, an image can be traced thereon by means of a thermal head heated to at least 120‹C, preferably at least 150‹C and usually up to 200‹C and intensified by overall exposure to UV radiation of wavelength 2,000 to 4,000 Š for a few seconds. Preferably, the binder comprises 30 to 50% of its weight of watersoluble polymer(s). (Examples 7 to 11). Subsequent overprinting is again possible here.
Patent GB-240793-A (GB)
Title: Improvements in pressed metal body posts for closed vehicle bodies
IPC: B62D25/04
Filed: 1925-06-29
Abstract: 240,793,. Budd Manufacturing Co., E. G., (Assignees of Ledwinka, J.). Oct. 2, 1924, [Convention date]. Bodies. - In a pressed-metal body post for closed motor vehicles, the inner faces of the upper and lower sections are disposed in different planes to form a ledge constituting an extension of a window ledge, and the upper section of the post is of a different cross-section to that of the lower section to obtain a minimum opaque crosssection to the upper section. The body post is longitudinally bowed and provided with a reinforcing lining bowed to a less extent and secured within the channel of the post. The upper part 83 of the post is formed of a channel section of less depth than that of the lower part 82. The reinforcing lining 87 is also of channel section, and is welded to the post at its ends and intermediately at the lock position and also by means of its side walls throughout its length. The lower part of the post is provided with off-sets 86 to accommodate the door bumpers, locks, &c. The post is adapted to receive the jamb rail of a door, the jamb rail engaging one of the lip flanges and the bottom of the channel of the upper section of the offset walls 86 of the lower section.
Patent GB-729050-A (GB)
Title: Improvements relating to extrusion machines
Inventor: BENNETT EDGAR GARFORD
IPC: B29C48/09
Filed: 1952-07-04
Abstract: 729,050. Extruding clay pipes &c. GARFORD BENNETT, Ltd. July 4, 1952, No. 16805/52. Class 87 (2). A cutting-off device for a pipe-extruding machine comprises a two-way cutter mounted between a pair of piston rods each carrying a pair of pistons. The cutter is described.as applied to the vertical clay-pipe extrusion machine of Specifications 653,392 and 729,036, wherein the cutting takes place after descent of the table supporting the socket die. The pipe is shown at 67. The cutter is in the form of a wire 54 stretched between roller-mounted carriages reciprocating on a runway formed by horizontal rails 50. The carriages are adjustably clamped to piston rods 59, 61 each carrying two pistons 60, 62 which reciprocate in single-acting hydraulic or pneumatic cylinders 55, 56, 57, 58. Adjustment of the stroke of the cutter may be effected by altering the position of the cylinders on the rails 50, graduations 75 being provided to facilitate adjustment. The pressure feed to the cylinders is controlled by valves actuated by a camshaft, this camshaft being driven at such a speed that in one cycle of the machine the cutting wire makes. a cutting stroke in one direction and in the next cycle makes a stroke in the opposite direction.
Patent GB-962619-A (GB)
Title: Improvements in or relating to hot-water boilers
IPC: F24H1/28
Filed: 1963-04-29
Abstract: 962,619. Hot-water boilers. G. OSPELT. April 29, 1963 [May 12, 1962; Dec. 5, 1962], No. 16825/63. Heading F4A. A hot-water boiler comprises a horizontally-disposed, cylindrical, inner water jacket enclosing a combustion chamber eccentrically mounted within an outer jacket or jackets, a longitudinal opening in the inner jacket leading gases from the chamber into the widest part of the annulus between the jackets whilst a gas discharge opening from the annulus to a stack or to the widest part of the next annulus is located at or beyond the narrowest part of the annulus whereby the velocity of the gases as they cool is maintained. In the form shown in Figs. 1 and 2 the boiler consists of an inner jacket 1 enclosing a combustion chamber 8 fired by an oil or gas burner 9. The jacket 1 is eccentrically mounted in an outer jacket 4, the jackets being connected to a common water space at the rear of the boiler. Gases from the chamber 8 discharge through an opening 12 into the widest part of the annulus 13 between the jackets 1, 4, and divided for flow through the narrowing space in which turbulence-producing fins 17 are provided, to a passage 15 whence they flow to an outlet 14. The boiler has flow and return connections 10, 11 to a heating system. For hot water supply an indirect heater 21 is disposed above the boiler and contains a coil 20 into which water from the inner jacket flows through a double-walled pipe 25 which also serves to return the water to the outer jacket. The heater has inlet and supply connections 22, 23. In a modification, Figs. 4 and 5 (not shown), the outlet from the inner jacket is disposed adjacent the discharge opening from the outer jacket and the gases travel in one direction around the annulus. In a further modification, Fig. 6, three jackets 101 107, 111 are provided, baffles 129, 131 being located adjacent the outlets 127, 128 from the inner jackets so that the gases are constrained to flow serially about both jackets through narrowing spaces before reaching the outlet 130 of the outer jacket.
Patent GB-407658-A (GB)
Title: Improvements in and relating to thermocouples
IPC: H01L35/20
Filed: 1932-06-14
Abstract: The invention described in the parent Specification is modified by replacing the rhenium in the platinum rhenium alloy by manganese or by one or more of the metals of the fifth and sixth groups of the periodic system such as vanadium, niobium, tantalum, molybdenum, tungsten and uranium.  The added metal may be present up to 15 per cent.
Patent GB-1107964-A (GB)
Title: Improvements in or relating to separating members for lamps in display signs
IPC: G09G3/24
Filed: 1966-04-18
Abstract: 1,107,964. Electrical display sign with cover member. GENERAL ELECTRIC CO. 18 April, 1966 [19 April, 1965], No. 16860/66. Heading G5C. [Also in Division F4] An electrical display sign has a cover member for separating the illumination effects of adjacent lamps, and comprises electrical lamps arranged in columns and rows and optionally mounted on a common plate to which the cover member is attached by bracket 167, parallel front and back cover plates 160, 161 having corresponding apertures aligned with respective lamps, a plurality of rectangular plate members 162 between and perpendicular to the front and back cover plates, and rigidly attached to them by the engagement of extending members on the plates 162 with slots 166 on the cover plates, and a plurality of tubes 165 of length less than the distance between the front and back plates and attached to the edges of the corresponding apertures in the front cover plate 160. Crossmembers 164 may be inserted in slots 163 in the plate members 162. Plastics material or glass inserts 168 may be provided for tubes 165.
Patent GB-665028-A (GB)
Title: Improvements in or relating to electrical apparatus for the treatment of rheumatism and kindred ailments
IPC: A61N1/02
Filed: 1949-06-27
Abstract: 665,028. Electro-medical appliances. SROKA, A. June 27, 1950 [June 27, 1949], No. 16929/49. Class 81 (ii). Electro-medical apparatus comprises a chair a covered with electrical insulating material b, socket connectors mounted below each arm, a junction box g, switch h and main socket mounted on the chair and connected to the socket connectors by concealed wiring f below the chair arms and contactor elements e for contact with the hands of a person seated in the chair each contactor element e being connected to a plug c complementary to the sockets under the chair arms.
Patent GB-633614-A (GB)
Title: Photographic cameras
IPC: G03B19/04
Filed: 1944-09-06
Abstract: 633,614. Photographic cameras. BOLSEY J. Sept. 6, 1944, No. 16993. Convention date, March 6, 1942. [Class 98 (i)] A body for a photographic camera is characterized by rearwardly extending wall portions 28 which together with the top and bottom end plates form substantially semi-cylindrical compartments for the film coil containers, shutter mechanism and film transporting means are accommodated in the frontal recess 39. Two coil film containers 50, 51 are joined by a U-shaped bridge member 52 with which is arranged a pressure spring 53 and leaf-spring 54, integrally connected if necessary, so as to hold the film in exposure position. Other details of the camera are as described in Specification 564,937. Specification 633,615 also is referred to.
Patent GB-1429211-A (GB)
Title: Heat exchanger
IPC: F28F9/22
Filed: 1973-04-10
Abstract: 1429211 Stationery seals; valves FOSTER WHEELER CORP 10 April 1973 [19 May 1972] 17029/73 Headings F2B and F2V [Also in Division F4] A seal assembly for an annular gap, e.g. in a heat exchanger, Fig. 1 (not shown), comprises an annular wall 68 fixed to one member 12 to be sealed, a seating member 92 connected to the other member 50 and a seal rim 80 supported by the wall 68 and urged against the seating member 92 by springs 78. The ring 80 is separated from an annular wall 72 supported by the wall 68 by pressure rings 84, and engages a gasket 88 on the seating member 92. The member 92 is attached to a further member 100 normally held in engagement through a gasket 122 with the flange 110 of the wall 50 by spring- loaded bolts 108, the member 100 being able to rise to release excessive pressure surges, thus constituting a pressure relief valve.
Patent GB-594277-A (GB)
Title: Improvements in or relating to holders for thermionic valves
IPC: H01R33/76
Filed: 1945-07-04
Abstract: 594,277. Thermionic valve holders. STANDARD TELEPHONES & CABLES, Ltd., and LEVY, M. M. July 4, 1945, No. 17036. Addition to 549,301. [Class 38 (i)] In a modification of the parent Specification, which describes a holder for a thermionic valve whose pins project in a plane perpendicular to the axis of the valve, a holder for a valve having pins which project parallel to the valve axis comprises a cup-shaped insulating moulding 6, in which the flat contact springs 11 are set in a circle, the moulding preferably having an external rim by which it is clamped between thin metal sheets 20, 21 welded together and having fixing holes 22, 23. A circular insulating member 12 fits the centre of the holder and has grooves 13 cut in its periphery to receive the valve pins, a keyhole 14 formed in its centre to fit the valve base locating plug, and a circumferential slot 19 into which are sprung the tips of the contacts. The sector-shaped legs 15, 16, 17 of the circular member fit corresponding slots 7, 8, 9 in the floor of the holder, which are of size to permit rotation through half the arc between two adjacent contacts. A plate 18 screwed to the three legs holds the circular member in position. The valve pins are inserted in the grooves when the latter are positioned between the contacts, and valve and central member are rotated until the contacts ride up on the valve pins, making good connection. The valve may be locked in its holder by a band clamped round the base, which carries two radial lugs (not shown) which engage slotted blocks 24 and 25 on the valve holder, when rotated in the correct direction. Plain blocks 29 and 30 prevent reversed rotation.
Patent GB-152123-A (GB)
Title: Improvements in and relating to pressure fluid motors
IPC: F01B23/06
Filed: 1919-07-08
Abstract: 152,123. Marks, E. C. R., (Keller Pneumatic Tool Co.). July 8, 1919. Reversing-valves.-In a portable drill, reversal of the motor is effected by interchanging the functions of passages 12, 14 by means of a rotary reversing- sleeve 29 provided with supply passages 26, 31, 30 and an exhaust slot 33.
Patent GB-546176-A (GB)
Title: Improvements in or relating to airscrew-blades
IPC: B21D53/78
Filed: 1940-11-29
Abstract: 546,176. Screw propellers. ARNOTT, D. D. Nov. 29, 1940, Nos. 17090/40 and 9210/41. [Class 114] [Also in Group XXII] In a hollow metal airscrew blade of the kind comprising a longitudinal reinforcing-member or backbone to which is secured one or more sheet metal sheaths forming the blade surfaces, the reinforcing-member consists of a homogeneous steel tube having a root portion 31 of circular cross-section and a blade portion of rectangular cross-section, the cross walls 36, Fig. 12, of which taper from the hub end to the tip end of the blade, the member being twisted to correspond with the. pitch of the blade so that the wider faces 35 thereof conform substantially to radial longitudinal strips of the front and rear faces of the blade. According to one method of manufacture a steel tube of uniform external diameter but of tapering thickness is swaged along the major portion of its length to form a rectangular tube 33, Fig. 3, merging at 34 into the thicker cylindrical portion 31 which is to form the root of the blade. The rectangular portion is then cut along its four edges as shown in Fig. 5, or along two diametrically opposite edges only, and the parts 36 forming the cross walls are cut to a taper form. By then closing the face walls 35 towards one another, there is produced a wedge-shaped tube of rectangular cross-section which is then twisted in accordance with the desired pitch of the blades, Fig. 9, and subsequently the blades are completed by welding to the member 33 the metal sheath or sheaths forming the glade surfaces. The latter may, as shown in Fig. 12, comprise two U- shaped elements 37, 38 adapted to be welded along their free edges to the member 33, or by a single U-shaped member which is sprung over the member 33 and has its free edges subsequently welded together, or by two sheet elements conforming to the blade surfaces and adapted to be welded along their leading and trailing edges. In a modified construction a tube of tapering external diameter and preferably of a corresponding decreasing thickness is pressed or forged to form a wedge-shaped tube of substantially rectangular cross-section, to which the metal sheath or sheaths are welded. Surplus metal may be extruded during the pressing or forging operation to form ribs running along the length of the cross walls, and such ribs may either be left or cut away as desired. A fusible core or gas pressure may be utilized to support the tube whilst it is being pressed or forged.