baber/WOPTO huggingface dataset:
Patent GB-215874-A (GB)
Title: Improvements in reflectors for vehicle lamps
IPC: F21V7/04
Filed: 1923-02-28
Abstract: 215,874. Mortimer, C. Feb. 28, 1923. Vehicle lamps.-A vehicle lamp reflector comprises an upper half paraboloid 3, the horizontal lower edge of which is continued vertically downwards so as to form straight side-pieces between which is fitted a segment of a paraboloid 5, a fine coiled filament extending along the common axis and between the focii 1, 2 of the upper and lower sections respectively. A curved extension piece 4 is fitted in front of the lower section 5 and reflects light upwardly on to the front portion 7 of the upper section 3, the front portion 7 being given an excessive curvature so as to reflect light downwardly for close range illumination. A metal rib 6 is placed between the lower section 5 and the extension piece 4 so as to prevent light reflected by the lower section 5 from striking the extension piece 4 and being reflected upwardly. Specifications 13791/15, 127,212, and 198,744 are referred to.
Patent GB-306494-A (GB)
Title: Improvements in secret signalling methods
IPC: H04K1/00
Filed: 1929-02-21
Abstract: 306,494. Standard Telephones & Cables, Ltd., (Assignees of Nyquist, H., and Mertz, P.). Feb. 21, 1928, [Convention date]. Telephone systems; secret transmission. To ensure secrecy different degrees of delay for the different frequencies are introduced at the transmitting end by a network 1. Fig. 1, complementary delays being produced at the receiving end by a second network 2. Amplifiers A1, A2 and attenuation equalizers E1, E2 which compensate for distortion produced both by the amplifiers and by the relay networks may be connected as shown. The delay networks may comprise a plurality of lattice sections of the type shown in Fig. 4. The Specification contains a description of the manner in which the distorting and correcting networks may be designed. Specification 202,284 is referred to.
Patent GB-685757-A (GB)
Title: Extensible ladders
IPC: E06C1/12
Filed: 1949-03-03
Abstract: 685,757. Ladders. AKTIEBOLAGET WIKSTRAND & BERG WIBE. March 3, 1949 [Dec. 13, 1948], No. 5869/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 5, 1949.] Class 20(ii) A latch for an extensible ladder comprises a hooking arm 2 mounted on one ladder unit and held by a spring 15 in the operative position as shown in the Figure so as to be engageable with the rungs of the next lower ladder unit and a stronger spring 11 adapted when tensioned to hold the arm 2 inoperative by overpowering the spring 15. When the upper ladder unit is raised the arm 2 and a feeler 3 having a return spring 12 are pressed in against their return springs by each rung of the lower unit and the upper unit is held in the required position by engaging the arm 2 with a lower unit rung, whereupon the feeler 3 is turned anti-clockwise and carries with it by means of catches 8, 9 a member 4 pivoted on the same axle 6, and which tensions the spring 11 and also moves the lower end of the spring past the dead centre position of the spring and the member 4 so that when the arm 2 is disengaged from the rung it will be moved to inoperative position by the spring 11 and allow the extension ladder to be lowered, the feeler 3 returning to initial position and clicking over the rungs. If now the upper unit is raised the feeler 3 will be turned clockwise by a rung and return, by means of a pin 10, the member 4 past the dead centre position and release the spring 11.
Patent GB-520366-A (GB)
Title: Improved means for stoppering and opening fluid containers or vessels
IPC: F17C13/04
Filed: 1939-02-22
Abstract: 520,366. Fire - - extinguishing. GRAVINER MANUFACTURING CO., Ltd., and SALMOND, H. M. Feb. 22, 1939, No. 5880. [Class 47 (ii)] [Also in Group XXVIII], A closure for a container for fluids under pressure comprises a plug having a stem the fracture of which exposes a bore and which, after fracture, can be forced into the bore to reclose the container. The plug 4 is made with a stem 9 which is fractured to expose the bore 10 by means of a right- and d left - handed screw 25 engaging threads in a cap 23 and the top part of the plug respectively whereby rotation of the handle in one direction breaks the stem, subsequent rotation forcing the upper part into the bore to close it. Specification 458,429 is referred to.
Patent GB-452586-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M9/00
Filed: 1935-02-25
Abstract: 452,586. Direct-call systems. STANDARD TELEPHONES & CABLES, Ltd., and SEARLE, A. M., 63, Aldwych, London. Feb. 25, 1935, No. 6012. [Class 40 (iv)] A telephone system particularly for use in mines comprises a single-wire line L carrying no direct current and employing electromagnetic transmitters, the line being connected at one end, for example, at the top of the mine, through a transformer S, P to amplifier equipment. The same electromagnetic instrument RT may be used for transmitting and receiving or separate instruments ET, R may be combined with a 3-winding transformer as shown in Fig. 1 to form an anti-side-tone circuit. The line L may have a number of stations in parallel and may be branched as in Fig. 2. In the arrangement of Fig. 1, the amplifier is used only for speech from a station on the line to the main station, but in that of Fig. 2, the output of the amplifier is fed back to the line so that amplified conversations may be carried on between two stations on the line. The line may be of enamelled wire so that an additional instrument may be clipped on at any point, the arrangement being such that the balance is thereby upset and the singing of the amplifier gives a calling signal.
Patent GB-911087-A (GB)
Title: Improvements in and relating to earth anchors
IPC: E02D5/80
Filed: 1961-02-17
Abstract: 911,087. Ground anchors. MIDDELBEEK, C. G. Feb. 17, 1961 [Feb. 19, 1960], No. 6025/61. Class 45. A concrete ground anchor is formed with fins C by driving a tube 3, having four folding arms 5 and a nose cap consisting of wedges 2 held on the tube 3 by wires 1, into the ground 11 (to the right in Figs. 1 and 2) and withdrawing the tube 3 (to the left in Figs. 1 and 2) while concrete is pumped into the hole so formed. The hole into which the concrete for the fins C is pumped is made by the arms 5 as they pivot at 4 on the tube 3.
Patent GB-576088-A (GB)
Title: Improvements in and connected with electric torpedoes
IPC: F42B19/24
Filed: 1942-05-06
Abstract: 576,088. Torpedoes. STONE & CO., Ltd., J., and CHILTON, A. H. May 6, 1942, No. 6073. [Class 9 (ii)] [Also in Group XXXVII] An electric motor a driving a torpedo is started gradually upon immersion of the torpedo by water entering the lower end of an air bell e and bridging triangular-shaped electrodes d. The water gradually rises in the bell and displaces air through an adjustable orifice f, until contact is made with an auxiliary electrode g, whereupon coil h is energized and contacts c are closed to short-circuit the electrode device. The contacts c may be held closed by a latch or a retaining coil.
Patent GB-189390-A (GB)
Title: Improvements in tennis rackets
IPC: A63B51/12
Filed: 1922-03-02
Abstract: 189,390. Santa Maria, C. R. March 2, 1922. Rackets.-In a tennis racket wherein some of the longitudinal strings are attached to a movable holder which may be drawn to tighten the strings by means of a tensioning rod passing through the entire length of the handle, the tensioning rod is made of flat shape and the usual reinforcing bolt at the neck of the racket is replaced by a bolt having an aperture through which the tensioning rod freely passes. As shown, the movable holder 7 containing revoluble rollers 9 is drawn down by a flat rod 2 passing through a slot in the reinforcing-bolt 14. The rod terminates in a nut 10 situated in a recess which may be closed by a screw stopper. By turning the nut 10 by means of a socket wrench 13 the tension of the strings may be adjusted. Additional rollers may be provided to facilitate movement of the transverse strings in the holes of the frame during the tightening process.
Patent GB-706613-A (GB)
Title: Improvements in or relating to road-wheel units for freight containers or the like
IPC: B64C1/22
Filed: 1947-04-17
Abstract: 706,613. Turnable fare carriages. FAIREY AVIATION CO., Ltd., CHAPLAIN, H. E., COSTIGAN, F. J., and MORREY, P. April 14, 1948 [April 17, 1947], No. 6203/49. Divided out of 706,611,. [Group XXXIII]. Class 108(2) A road-wheel unit for a freight container or the like,. comprises two road wheels rotatably mounted at respective ends of a transversely extending frame having a member secured centrally thereto and formed with a gap and self-locking socket to receive a vertical pivot on a standard container and shaped to correspond with a seating on the container. As shown, the road-wheel unit comprises a pair of wheels 85 mounted on a tubular axle 86 to which a tow-bar 87 is attached. The axle is carried in bearing brackets 88 attached to road springs which support a frame 90 comprising a pair of transversely disposed beams connected together at their ends by members 94. A turntable base-plate, 91. mounted on the frame 90 is formed with a gap which converges inwardly to a centrally disposed spring-loaded selflocking socket 92 in which is received a vertical pivot attached to the underside of the container. The spring-loaded lock is released by a handle 93. The unit is provided with a spring-loaded towing hook 96. The axle 86 and each bearing bracket 88 are both drilled and provided with quick-release pins for locking the tow-bar 87 when the unit is being manoeuvred under the container. The unit is provided with a servo brake unit 100, which may be connected through piping on the container to similar braking systems on other roadwheel units or a towing vehicle. An overriding manual brake lever 104 is also provided. The unit may be attached to the container which may be of the type .described in Specification 706,611 [Group XXXIII], in a steering or non-steering capacity; in the latter, an adjustable support pad 97 at each side of the frame 90 bears against the underside of the container to which the tow-bar 87 is anchored by means of a shackle 98 and a quickrelease pin. In this position the tow-bar acts as a radius rod and a brake torque reaction member.
Patent GB-429127-A (GB)
Title: Improvements in recessing or pro-filing tools for use in wood working machinery
IPC: B23B51/10
Filed: 1934-02-26
Abstract: 429,127. Rotary wood-working tools. LYONS & CO., Ltd., J., Cadby Hall, Kensing- ton, and OATLEY, E., 83, Adelaide Road, West Ealing, both in London. Feb. 26, 1934, No. 6210. [Class 145 (i)] [See also Group XXII] In a rotary tool for cutting holes or slots in wood, such holes or slots having chamfered or moulded edges at both ends of the hole, the chamfer or moulding of one edge is effected by a shoulder on the hole-cutting tool and the chamfer or moulding of the other edge is formed by a pivoted cutter movable about a pivot within the tool, and moved outwards to form the chamfer by means of lever mechanism brought into operation by the final downward movement of the tool operating in conjunction with an adjustable stop. Elongated slots are cut by feeding the tool or the work laterally. A chuck c is secured in the lower end of a vertical spindle b mounted by ball bearings b', b<2>, b<3>, b<4> in casings m, m<1>, m<2> mounted in the machine standard ; the spindle b is rotated by a pulley p keyed thereto, and is fed axially by a sleeve m<3> movable by any suitable means in the boss d<3>. The spindle b is hollow, and a rod r extends therethrough, carrying at its upper end the inner race of a ball-bearing b<7> the outer race of which is carried by a sleeve s<1> slidably but non-rotatably mounted in the casing m and carrying a screwed rod n<1> provided with a nut n<5>. The lower end of the rod r is connected by a pin c<1> to a lever t pivoted within the chuck c. The spindle b is fed down into the work, until the nut n<5> engages the cover m<10> whereupon the rod r is held against axial movement; further movement of the chuck c causes the lever t to be tilted and a projection t<6> thereon tilts a second lever t<2> pivoted within the chuck and carrying a cutter t<4> which thus becomes operative to chamfer the lower edge of the hole. The hole-cutter t<1 >is provided with a shoulder t<8> which chamfers the upper edge of the hole. Upon upward movement of the spindle b, centrifugal action causes the lever t to move upwards and so move the cutter t4 inwardly to permit withdrawal of the tool from the hole. The cutter t<7> is mounted eccentrically in the chuck c to ensure a clearance angle of the cutting edge, and to facilitate grinding ; the chuck c comprises a body c<6> and a covering sleeve c'.
Patent GB-990965-A (GB)
Title: Improvements in or relating to distributors for free-running materials such as lawn fertilizers
Inventor: HARGREAVES DEREK BURTT
IPC: A01C15/16
Filed: 1961-02-21
Abstract: 990,965. Fertilizer distributers. W. HARGREAVES & CO. Ltd. Feb. 20, 1962 [Feb. 21, 1961], No. 6268/61. Heading A1D. A distributer of the kind comprising a roller 16, which forms the floor of a hopper 10 is characterized in that a flexible plate 18 is secured to the hopper so as to confine the arch of the roller forming the base of the hopper to a rearward portion of such roller. The plate 18 is adjustable to alter the effective distance between it and the roller. The roller is provided with a rubber band 17 having a plurality of longitudinal surface ribs and grooves. Specification 887,627 is referred to.
Patent GB-394439-A (GB)
Title: Improvements in and relating to sliding sash windows
IPC: E05D13/00
Filed: 1932-03-02
Abstract: 394,439. Sash-cord attachments. RAE, A., 17, Kelly Street, Greenock. March 2, 1932, No. 6290. [Class 20 (iii).] A sliding-sash window structure is constructed so that the renewal of the suspension cords may be effected without removal of the sashes from the frame, by anchoring each cord to an L-shaped lug which has limited freedom to tilt within a channelled guide in the sash, whereby the lug is caused to lock itself to the guide when the cord is tensioned but may be tilted into disengaged position when the cord is de-tensioned. As shown in side elevation and plan view by Figs. 1 and 3 respectively, each cord 1 is anchored to an L-shaped lug which comprises a vertical limb 3 guidingly received in a channelled guide 4 and a horizontal limb 6 apertured at 7 to receive the cord 1. The guide 4 is formed in a recess 5 of the sash 2. When the cord 1 is tensioned, the lug is tilted whereby an inturned tooth 8 is. caused to enter an aperture 9 in the guide 4. When the cord 1 is de-tensioned, the lug can be removed through the guide 4 by means of a wire or hook inserted through an aperture in the limb 3 of the lug. To permit access to the sash balance weights, there is provided, behind each side member 12, Fig. 10, of the window frame at the bottom of the sashweight pocket 11, an opening 16 covered normally by a removable panel 17, the upper and lower edges of which are stepped at 18, 19 respectively, for engagement with matinglyshaped edges of the member 12. A countersunk snib 20 is provided at the lower end of the panel 17 to prevent accidental displacement thereof.
Patent GB-548740-A (GB)
Title: Improvements in or relating to animal traps
IPC: A01M23/30
Filed: 1941-05-16
Abstract: 548,740. Animal traps. SHEPHERD, T. L., and TWORT, C. C. May 16, 1941. No. 6308. [Class 5 (i)] The spring-bow 4 and tripping arm 6 are, when set, disposed below the surface of the base of the trap in grooves 5, 7, only the bait-holding fork 9 projecting above the base, so that the oncoming animal sees an apparently even surface. As shown, the base is formed from a single block, but a trap of known type may be mounted on a platform and a grooved and recessed domed portion secured thereover as by glue, nails or screws ; or the trap mechanism may be covered with a fragile material such as fabric or paper which will carry the weight of the animal but will be torn on release of the bow.
Patent GB-670786-A (GB)
Title: Improvements in or relating to shock-absorbing suspension means
IPC: F16F9/06
Filed: 1949-03-08
Abstract: 670,786. Hydro - pneumatic shock absorbers. ALINQUANT, F. S. March 8, 1949 [March 9, 1948; April 27, 1948; Dec. 21, 1948], Nos. 6311/49, 6312/49 and 6313/49. Class 108(iii) An hydro-pneumatic shock absorber comprises a cylinder 17, Fig. 3, and a cooperating annular piston 11 carried by an open-ended tube 7 which contains a gas under pressure above the level of the liquid, throttling passages 13 in the piston permitting passage of liquid between the lower part of the cylinder and an annular space 1a. The passages 13 are provided by a reduced-diameter piston-portion 13a between spaced grooves 12. Each groove 12 is connected by ducts 14 to the respective piston end-face. In a modified piston construction, Figs. 5-8 (not shown), the periphery of the piston is formed with axial flats or grooves. These may provide a damping passage in conjunction with the cylinder bore, or a surrounding sleeve rigid with the piston. The cylinder bore may be slightly tapered to provide a progressively increasing damping effect. A floating piston 25, separating the gas and liquid, may be replaced by a flexible diaphragm, Fig. 4 (not shown), in the form of a sheath. The latter projects into the bore of the plunger 7 and has its mouth secured to a clamping ring to the lower face of the piston. In a further modification, Fig. 1 (not shown) the floating piston 25 is omitted. In an alternative form of the latter construction, Fig. 2 (not shown), a damping head having a similar annular damping clearance to that of the piston 11 is positioned in the pneumatic space of the plunger 7 by a concentric rod rigid with the tube 7. A flexible dirt-excluding sheath, Fig. 15 (not shown) may be connected between a head 21 of the tube 7 and the end of the cylinder 17. The sheath is spaced from the plunger tube 7 by a flanged ring to which it is secured by a hollow rivet. The ring and sheath are clamped by the shock absorber attachment ring 23 to the head 21. Damping may alternatively be provided by a valve 41, Fig. 9 carried by a spring plate 42. A tapered extension 43 of the valve provides a metering effect. In an alternative construction Fig. 13 the valve 53 has an upward extension 53<SP>1</SP> carried by a spring plate 52 and disposed in a bore 51 of substantially larger diameter. A downward extension 54 is located in a bore of smaller diameter which provides an annular damping passage 54<SP>1</SP>. The axial length of the clearance decreases with increased opening of the valve. Four valves 53 are spaced at 90 degrees intervals around the piston rod but adjacent valves open in opposite directions. In a further construction. Fig. 11 (not shown), a mushroom-shaped valve in an axial duct in the piston, is urged by a coiled spring on to a seat at one end of the duct. The seat is formed by a reduced diameter portion of the duct, which is also formed with diametrically-opposed axiallyextending grooves.
Patent GB-1376903-A (GB)
Title: Fishing rod supports
IPC: A01K97/10
Filed: 1971-03-09
Abstract: 1376903 Rod support INCOL PRESSWORK Ltd 8 March 1972 [9 March 1971] 6369/71 Heading A1A A rod support comprises a boom 10 secured by an adjustable mounting 11 upon a post 12. Tubes 13 and 14, which are joined by sleeve 15, comprise boom 10 and the ends of the tubes are closed by handle 17 and rod rest 16 respectively. Adjustable mounting 11 has a clamp member 20, which provides a split collar engaging tube 13, a cross bore through limbs 21, 21, in which is journalled a mounting shaft 22, and a stop clamp member 23 with a tubular sleeve surrounding head portion 24 of mounting shaft 22. A rod rest 40 with an arm 41 is attached to post 12 via bolt and wing nut 43. In use the rod support is held in a substantially vertical position by either driving point 30 and member 31 into the ground, or bolting member 31, via apertures 34, to a support structure. The angular position of the boom, in the vertical plane, is fixed by operating knob 25 which engages threaded end portion 26 of shaft 22 and limbs 21, 21 are forced towards one another. This compression is effected by knob 25 cooperating with protrusion 80, which projects from member 23 and abuttingly engages with countersunk recess 81 of the cross bore through limb 21. The boom may be positioned at any point on post 12 after operating knob 25 so as to release the locking engagement of member 23 and head 24 with the post.
Patent GB-828152-A (GB)
Title: Improvements relating to metal foil containers
Inventor: THORNTON ROY
IPC: B65D8/20
Filed: 1955-03-04
Abstract: 828,152. Portable containers and closures therefor. PRESTIGE GROUP Ltd.. [formerly PLATERS & STAMPERS Ltd.]. March 5, 1956 [March 4, 1955], No. 6469/55. Classes 66 and 125(3).  A metal foil container 1, Fig. 3, has a flat outwardly extending lip 3 the edge of which is turned up at right angles and curled outwardly as at 4 to form a rim. A metal foil closure, Fig. 1, has a flat annular portion 5 which seats on the flat lip 3 of the container, there being a rim of in verted U-shape on the closure which fits over the curled rim 4 of the container 1. The closure 2 is secured on the container by clinching to form the assembly shown in Fig. 3. The closure may have one or more small projections 8 near its U-shaped rim which serve to strengthen the rim and facilitate the separation of the closures if they have been nested together. The lip 3 of the container and the flat annular portion 5 of the closure may be coated with an adhesive or other sealing material.
Patent GB-1379436-A (GB)
Title: Supports for measuring systems
IPC: G01B5/00
Filed: 1972-02-11
Abstract: 1379436 Gauge support frames INDUSTRIAL NUCLEONICS CORP 11 Feb 1972 [16 Feb 1971] 6546/72 Headings G1M and G1S A frame 1, Fig. 1, has arms 3, 4 which freely supports a movable tube 2 until it is tightened up and tensioned by a nut 7. Clamps 9',9'',9''' rigidly fastened to frame arm 8 may be fastened around the tube 2 to hold it against bending, under the weight of a measuring device 11 which may be slid over sheet material 12 to be gauged and to an off sheet or non-gauging position 16. In operational conditions the frame 1 is subjected to temperature changes and distortion so that the tube 2 will bend and influence the measuring device 11. To alleviate this condition the tube 2 is released from the clamps 9 although still under tension by the nut 7 and allowed to assume a natural position with the device 11 in the 16 or off gauging position. The clamps 9 are then refastened to hold the tube in its new position. Each clamp 9 includes a suitable electric or pneumatic actuator operated by a control unit 23 and switch 28 when the switch 24 is closed to automatically bring the device 11 to the 16 position. A suitable time is allowed for tube 2 to assume its natural position and then the switch 28 is opened by 23 to reclamp clamps 9 and return the device 11 to its measuring position. In Fig. 3, (not shown) the measuring device has a head above the sheet material and also a head below and two pairs of supporting tubes and sets of clamps. The upper head 46, Fig. 6, is supported by one pair of tubes 50', 50" by means of wheels 60, 61 and the clamps 65, 67 are sliding wedges operated by arms 72', 72" for manual movement in unison by energizing an electromagnet 73.