baber/WOPTO huggingface dataset:
Patent GB-367038-A (GB)
Title: Improvements in or relating to the reproduction of sound with the aid of light
IPC: G11B7/00
Filed: 1930-08-18
Abstract: 367,038. Reproducing photographic sound records. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and BROWNE, C. O., 3, Freeland Road, Ealing Common, London. Aug. 18, 1930, No. 24711. [Class 40 (ii).] In the reproduction of sound from photographic records wherein the light source is supplied with alternating current, distortion in the output circuit due to the alternating current supply to the light source is avoided by superposing on the oscillations in the output circuit electrical oscillations which are substantially equal and opposite to those produced in that circuit by the intermittency of the light source. These correcting oscillations may be applied in the grid filament circuit or the.plate circuit of a thermionic amplifier in the output circuit of the sound-reproducing apparatus. In the example shown in the Figure, the light source 1 is fed with a 50 cycle alternating current through a step-down transformer 3 and the light sensitive cell 8 delivers to an amplifier 9 on the grid circuit of which is also impressed correcting oscillations due to a thermojunction 10 influenced by a heating coil 11 in a branch from the supply circuit, which branch includes a regulator 15 to control the effect of the junction on the resistance 12 and the grid 13. In another arrangement wherein the plates of the amplifier are supplied from the same source as the light through rectifying and smoothing circuits, some of the smoothing is omitted, thus producing a ripple which can be arranged to provide the correcting current for the light intermittency. A light-sensitive device 8 more sensitive to red light than to blue is employed.
Patent GB-998675-A (GB)
Title: Improvements in or relating to pirn tubes and the like yarn carriers
IPC: B65H75/26
Filed: 1962-06-27
Abstract: 998,675. Bobbins. K. KNEBS. June 27, 1962 [July 3, 1961], No. 24745/62. Heading B8M. A pirn tube 10 or the like yarn carrier of synthetic plastics material has a plurality of circumferentially extending projections forming ridges 11 for promoting the adhesion of the layers or windings of yarn, each ridge being of substantially saw-tooth shape in cross-section and each ridge having circumferential grooves, Fig. 2 (not shown), in its surface. The projections may be separated by recesses 16.
Patent GB-263929-A (GB)
Title: Improvements in folding ladders
IPC: E06C1/383
Filed: 1925-10-05
Abstract: 263,929. Hunt, J. D. Oct. 5, 1925. Ladders. - A collapsable ladder is formed with the side members a of U- section and the treads b also of U-section hinged at their centres; one part of each tread is of larger section than the other to receive it when in collapsed position and the meeting parts f form a stop. The side members are hinged directly together at their upper ends and are provided with rubber shoes at their lower ends to increase the grip.
Patent GB-1263968-A (GB)
Title: Method and apparatus for inspecting surfaces of articles
IPC: G01N21/89
Filed: 1969-05-15
Abstract: 1,263,968. Photo-electric flaw detection. NIPPON SEIKO K. K. May 15, 1969 [May 22, 1968], No.24903/69. Heading G1A. Objects are inspected photo-electrically for flaws. A roller bearing 4, for example, is continuously rotated by drive rollers 2, 3 while being illuminated by elongated lamp 5. An array of fibre optic bundles 1 have their first ends located to view respective sections along the length of the bearing surface and their other ends feed an array of phototransistors 1-10. These detectors are connected in pairs, preferably comprising spaced-apart detectors e. g. No. 1 with No. 10, No. 2 with No. 6 &c. as in Fig. 2 (not shown), in bridge circuits the out-of-balance signals from each of which is amplified by a D. C. differential amplifier (28), and fed to a Schmitt trigger circuit (32) via an adjustment circuit (30). Either the amplifier or the trigger itself can be adjusted to set the triggering level, out-of-balance signals which are above this level representing the presence of flaws. The Schmitt triggers feed a common OR-gate (34) operating an electromagnetic device (36) to effect sorting out of defective bearings when a succession of these are examined. Further pairs of photo-transistors supplied by optic fibre bundles monitor the ends of the bearings (Nos. 11, 12) and the overall gloss of the surface (Nos. 13 and 14). The apparatus may be modified to examine ring shaped objects or ball bearings or to monitor the blackening of or blowing of a lamp filament. The detectors may be alternatively photo-cell or photodiodes.
Patent GB-1505895-A (GB)
Title: Electrical contact pin
IPC: H01R12/58
Filed: 1975-06-11
Abstract: 1505895 Two-part couplings; contact pins AMP Inc 11 June 1975 [21 June 1974] 24946/75 Addition to 1470007 Heading H2E A contact pin is similar to that of Specification 1,470,007, but has the offset legs 5, 6 each terminating in a point 13 on a respective side 14 of terminal 2 to inhibit any tendancy of the pin to rotate as it is inserted into a hole in a printed circuit board. In another embodiment rotation is inhibited by the use of semi-circular (Figs. 4-8, not shown), cross-section legs.
Patent GB-1481042-A (GB)
Title: Guns for forming jets of particulate material
IPC: B24C5/02
Filed: 1974-06-05
Abstract: 1481042 Nozzles B E HART 13 May 1975 [5 June 1974] 25003/74 Heading B2F [Also in Division B3]  A gun forming a jet of abrasive particulate material and liquid, comprises a body 1 having a bore 2 connected to a supply of particulate material and liquid at one end and having an opening 4 at the other end, a pair of part cylindrical guide surfaces 5, and a pair of nozzles 6 connected by flexible hoses 8 to a high pressure liquid supply, so that the jets of liquid issuing from the nozzles impinge on the guide surfaces 5 to form flattened jets which intersect at a point P beyond the bore opening and in the path of the particulate material issuing from opening 4. The liquid is supplied by a high pressure pump through a valve, Fig. 4 (not shown) and a by pass outlet from the valve carries the supply of particulate material and liquid from a hopper to the gun, the hopper outlet being controlled by another outlet of the valve. The liquid may be water at 2000 to 5000 p.s.i. and the particulate material sand, grit or other silica based material which may be supplied fluidised by air. The guide surfaces subtend an angle of 25‹ and the jets intersect at an angle of 10‹ three inches beyond the bore opening. The nozzles 6 and body 1 alternatively may be formed integrally. In a modification lateral extensions on each side of the opening of the body 1 are provided to assist the liquid jets in drawing materials from the bore 2 by encouraging the formation of a vacuum at the opening.
Patent GB-379520-A (GB)
Title: Improvements in racks or supports for saucepan lids and other articles
IPC: A47J47/16
Filed: 1931-09-07
Abstract: 379,520. Racks for saucepan lids &c. ADAMS, R. G. and ADAMS BROS. & BURNLEY, Ltd., Harrow Sheet Metal Works, Elmgrove Road, Harrow, Middlesex. Sept. 7, 1931, No. 25088. [Class 28 (ii).] A rack for supporting saucepan lids and other articles comprises a metal sheet a, preferably tapering in width from the bottom to the top, stiffened by pressed-out channels b around the edges, and by transverse channels c, the spaces between the channels e being each divided into two portions e, f by cuts so that by bending out the portions e and bending in the portions f, about the axes of the channels c, supporting ledges for the saucepan lids are formed. The cuts are of such form that central depressions g are left for the reception of the handles of the lids. The rack may be secured to the wall by a tab h pivoted to the upper end of the rack by a split pin. When the device is packed for transit, the tab h is swung so that it projects through an aperture k. The bottom of the rack is spaced from the wall by a pivoted wire stay l which may be folded flat against the back of the rack.
Patent GB-997158-A (GB)
Title: A potato harvesting plough
IPC: A01D19/04
Filed: 1964-06-17
Abstract: 997,158. Root-crop harvesters. F. A. UNDERHAUGS FABRIK. June 17, 1964 [June 20, 1963], No. 25148/64. Heading A1F. A potato harvester comprises a share 1 and a substantially vertical spinner 2 rotatable about a longitudinal axis to convey the excavated material from the share to a transverse conveyer 3 across a grating 4, 5 mounted between the share and the conveyer and a rotating disc-cutter 9 mounted in alignment with the share on the side adjacent to the conveyer, wherein the grating is divided into two parts 4, 5 by a channel 7 which affords a clear passage to the conveyer for roots and haulms sliding along the leading edge 8 of the share. The disc-cutter is driven by bevel-gearing 12 from the axle 11 of the spinner and has a cylindrical drum surrounding its axle.
Patent GB-1184314-A (GB)
Title: Bag Opening and Emptying Machine
Inventor: MORIARTY EDWARD JOHN
IPC: B65B69/00
Filed: 1968-05-27
Abstract: 1,184,314. Bag opening and emptying machine. E. J. MORIARTY. 27 May, 1968 [9 Oct., 1967; 7 Feb., 1968], No. 25200/68. Heading B8C. A bag opening and emptying machine comprises spaced apart means for supporting a bag containing free-flowing material, at least one knife positioned between adjacent supporting means for slitting the underside of the bag, means for vibrating the supporting means and means for ejecting the emptied bag from the machine. In the machine shown in Figs. 1 and 2, the bag supporting means comprises curved bars 28 extending across the upper end of a tube 25. The tube is carried by a plate 21, which is supported on the fixed framework of the machine by yieldable hemispheres 19, 24 to facilitate vibration of the tube, bars and plate. A motor 40, mounted on the machine frame, drives a shaft (42), Fig. 4 (not shown), the shaft being journalled in bearings mounted on the tube 25 and carrying eccentric discs for inducing vibration of the tube. Three double edged knives 32 are carried by a shaft 30 which is rotatable by means of a pneumatic piston/cylinder combination 12 to rock the knives (clockwise for one bag, anti-clockwise for the next) along an arc. The emptied-bag ejecting means comprises a three-pronged fork 51 which may be pivoted to the broken line position shown by a pneumatic piston/cylinder combination 15. The operation of pneumatic combinations 12 and 15 may be controlled by means, Figs. 5 and 6 (not shown), which operate automatically once the weight of a bag dumped on the supporting bars 28 has tripped a lever 61 to operate a valve 60. In the modified machine shown in Fig. 10, the bag 113 is supported on two spike-carrying, pivoted plates 112, which initially rest on lugs 152. The bag is slit by a single knife (not shown) and plates 112 pivoted to the position shown. During such rotation, rods 138 carrying spikes 139 are rotated through 180 degrees to pull the bag apart at the slit.
Patent GB-238740-A (GB)
Title: Improvements in and relating to beaters or cleaners for cotton or waste
IPC: D01G9/00
Filed: 1924-10-24
Abstract: 238,740. Hardman, W. Oct. 24, 1924. Openers etc.; feeding openers &c.-In a beater or cleaner for cotton or waste the driven beater shaft 2 carries a worm 6 which drives a shaft 8 carrying a bevelgear 10 meshing with a bevelgear 11 on a stub-shaft 12. A gear on the shaft 12 meshes with a superimposed gear 14 on the feed-roll shaft 15. A gear 19 on the other end of the shaft 15 meshes with a gear 20 on the shaft 21 of the roller driving the feed-lattice 23. A gear 26 on this shaft drives a gear 27 on the shaft of a toothed roller 29 situated above the end of the feedlattice and the feed-roll. A belt 31 on the beater shaft 2 drives a countershaft 33 from which are driven the mixer and the hopper feeder of the arrangement described in Specification 238,739 by belts 35 and 37 respectively.
Patent GB-821454-A (GB)
Title: Means for regulating the thread tension in twisting and winding frames
IPC: B65H59/10
Filed: 1956-08-20
Abstract: 821,454. Thread tension regulators. VEREINIGTE GLANZSTOFF-FABRIKEN A.G. Aug. 20, 1956 [Aug. 20, 1955], No. 25412/56. Classes 120(2) and 142(1) Thread tension regulating means comprises two adjustable grid brakes in each of which rows of bars extend in V formation and which are arranged one after the other in the path of travel of the thread and in staggered formation, and an adjustable spring-loaded thread guide disposed between the two grid brakes and providing a thread reserve the guide changing the position of the travelling thread within the two grid brakes in response to variation in input tension between predetermined limits. As shown thread passes through a guide 7 to a grid type tensioner 1 and thence to a guide 13, on a pivoted lever 10, on to a guide 14 at the other end of lever 10 and through a second grid type tensioner 2 to another fixed guide 8. Should the tension become excessive, the lever 10 pivots against spring force and draws the thread towards the outside of the bars 3, 4 and 5, 6 so that it follows a less sinuous path thus the tension is reduced. The angles between the bars 3, 4 and 5, 6 may be adjustable or the brakes may be displaced relatively to each other and the pivoted thread guide arrangement 10 may be replaced by two separate thread guides which are under spring tension and are displaceable relatively to one another.
Patent GB-296712-A (GB)
Title: Improvements in hydraulic brakes or shock absorbing devices, such as railway vehiclebuffers
IPC: B61G11/12
Filed: 1928-09-05
Abstract: 296,712. Rheinische Metallwaarenund Maschinenfabrik. Sept. 5, 1927, [Convention date]. Buffers. - In a hydraulic shock-absorbing device, such as a railway vehicle buffer, two sets of passages are provided for the escape of liquid from a containing chamber k during the inward movement of a piston b, one set of passages h being permanently open and, in known manner, increasing in area towards the ends i nearer to the piston b in its normal position and accommodating entirely the flow of liquid when smaller shocks are absorbed, while the second set of passages f, arranged, e.g., in the piston b, are closed by a spring-loaded valve or plate g and are opened only when more violent shocks are encountered and a predetermined maximum pressure in the chamber k is reached, the valves preventing such pressure from being exceeded. In the construction shown, the invention is applied to a railway vehicle buffer in which the piston b is mounted on a piston rod c guided in stuffing-boxes m at the ends of the liquid cylinder a and having a head d maintained in contact with the plunger head l by a volute spring e.
Patent GB-667668-A (GB)
Title: Improvements in or relating to apparatus and systems for indicating when a rotatablemember is at rest or alternatively when the rate of rotation of a rotatable member has fallen or risen to a predetermined amount
IPC: G01P1/10
Filed: 1948-10-01
Abstract: 667,668. Revolution-direction indicators; speedometers. CHADBURNS (LIVERPOOL), Ltd., and BREWERTON, A. E. Aug. 25, 1949 [Oct. 1, 1948], No. 25569/48. Class 106 (iii). An apparatus or system for indicating when a rotatable member is at rest or alternatively when the rate of rotation of a rotatable member has fallen or risen to a predetermined amount, comprises a floating receptacle having a leak-off or overflow for a liquid, a pump adapted to be driven by the rotation of said member and arranged to pump liquid into said floating receptacle, and means for operatively connecting the floating receptacle to an indicating device, rising and sinking of the floating receptacle in accordance with the amount of liquid in it causing operation of the indicating device. and thereby giving an indication of the state of rest or the predetermined upper or lower rate of rotation of the member. The apparatus preferably indicates also the direction of rotation of the rotatable member. As applied to the propeller shaft of a ship, the apparatus comprises a cup-shaped float 14 floating in mercury 15 and determining which of two contacts 23, 24 a contact arm 25, Fig. 1, engages. A pump 16, Figs. 1, 2, driven from or by the propeller shaft, pumps mercury from the bath into the float 14 which is provided with a leakage hole 14b. The arrangement is such that when the propeller shaft 18 is rotating above one revolution per minute, say, the float 16 will sink and contacts 25, 23 will close to complete a circuit via contacts 22, 20 or 22, 19, Fig. 1, of a second switch positioned in accordance with the direction of rotation of the propeller shaft to either of coils 30, 29 of a motor 27. If the speed of rotation of the shaft 18 is below one revolution per minute the contacts 25, 24 close to complete a circuit to coil 28 of the motor 27. The motor armature is positioned in accordance with which of the coils 28, 29, 30 is receiving current and a pointer associated therewith indicates this position on a suitable scale. The armature retains its temporary position as the associated switch of the switches 31, 32, 33 is opened by cam means, not shown, to break the circuit to the corresponding coil 28, 29, 30.
Patent GB-1191416-A (GB)
Title: Improvements in Rotary-Piston Internal Combustion Engines.
Inventor: WINKELMANN OTTO JOHANN
IPC: F02B53/00
Filed: 1968-05-28
Abstract: 1,191,416. Rotary-piston internal combustion engines. CHRYSLER CORP. May 28, 1968, No.25588/68. Heading F1F. A rotary-piston I. C. engine comprising an outer body having an internal cavity formed by spaced apart end walls and an inter-connecting peripheral wall having a multi-lobed inner surface within which an inner body having a plurality of circumferentially spaced apex portions around its periphery rotates relative to the outer body about an axis spaced from but parallel to the cavity axis and wherein the outer body includes an intake port for the admission of a gaseous fuel/air mixture, includes for each apex portion a sealing means engaging the inner surface which also communicates with the intake port by means forming a vent passage through the interior of the inner body. As shown, an outer body 23, Figs. 1, 7, having spaced apart end walls 25, 27 and a two-lobed epitrochoidal peripheral wall 29 forming a cavity 31 houses a planetary rotation piston 49 having three apex portions 59. Each end wall includes an intake port 71 and each apex portion is fitted with a sealing and vent means 61, comprising in the direction of piston rotation, a leading sealing strip 103, Fig.2, formed in two parts 109, 111, Fig. 5 (not shown) having complementary sloping faces and a trailing sealing slip 101 similarly formed in two parts 105, 107, Fig.6 (not shown). The strips 103, 101 are mounted with slight lateral clearance in an axially-extending piston groove 91 with adjacent faces thereof formed with cut-out portions having deeper confronting recesses 137, 135. The recess 137 communicates through ports 145 and aligned ports 147 in radiallymounted tubular piston members 149 having lateral ports 159 with transfer tubes fitted with plugs 163 having restricted bores 165 communicating with piston recesses 167 on the piston end-faces between end-face gas seals 63 and oil sealing rings 77 with the recesses 167 communicating with the intake ports 71. In operation, in the chamber opposite the spark-plug in which maximum compression occurs, the sealing means are urged as units and leave a gap between the trailing strip 101 and the side of the groove 91 at the leading end of the chamber and a gap between the leading strip 103 and the side of the groove 91 at the trailing end of the chamber, so that any unburned fuel/air mixture entering the grooves assists springs 115, 117 urging the strips 101, 103 into sealing engagement with the inner surface 28 of the cavity 31 and the unburnt fuel/air mixture leaking from the chamber passes through the vent passage to be transferred to the inlet ports for burning during the next combustion cycle and thus prevents pollution of the atmosphere.
Patent GB-1305883-A (GB)
IPC: G03B19/12
Filed: 1971-04-19
Abstract: 1305883 View-finder NIPPON KOGAKU KK 19 April 1971 [28 April 1970] 25676/71 Heading G2A A pentaprism type view-finder for a single lens reflex camera comprises an ocular 4; a display member 5 to be imaged in the ocular; a focusing screen 1; a pentaprism 3 having a transmitting surface 3b adjacent the screen 1 and a non-reflecting surface 3d through which a light beam 5 from the member 5 is transmitted so as to be reflected by the surface 3b; and an optical reflecting member 8 for twice further reflecting the beam 5 before directing it to the ocular 4. The reflecting member 8 ensures that the path length from the display member 5 to the ocular 4 is substantially equal to the path length from the screen 1 to the ocular 4. Two other forms of the reflecting member are described, Figs.3 and 4, (not shown), one reflecting the beam 5 a further three times.
Patent GB-454332-A (GB)
Title: Improvements in and relating to chairs and the like
IPC: A47C3/04
Filed: 1935-09-17
Abstract: 454,332. Nesting chairs. GLENISTER, W. G., 17, Clifton Park Road, Caversham, Reading. Sept. 17, 1935, No. 25729. [Class 52 (ii)] In a nesting chair in which the rear legs lie in vertical planes outside the side edges of the seat, and the front legs lie in vertical planes within the planes of the rear legs, and having a free opening bounded by the rear legs and the underside of the seat, the seat 1 has tapered side edges, the front being narrower than the back. The rear legs 5 are connected to the seat by providing lugs 2 on the latter which enter rebates cut in the legs and are secured by screws. The front legs 6 are secured to the seat by dowels 14 or otherwise, and are connected to the rear legs by side rails 11 morticed into the front faces of the rear legs and screwed to the outer side faces of the front legs. Specification 344,159 is referred to.
Patent GB-783576-A (GB)
Title: Improvements in spring biassed hinges
IPC: E05D3/06
Filed: 1955-09-08
Abstract: 783,576. Door operating appliances; hinges and pivots. GENERAL MOTORS CORPORATION; Sect. 8, 1955 [Sept. 23, 1954], No. 25734/55. Classes 65(1) and 65(2) A bonnet is pivoted to a car 10 by a pair of spring-biased hinges each comprising two arms 16, 18 pivoted one below the other at 20, 22 to a support 12 and having intermeshing gear segments 24, 26, the arm 18 being pivoted at 30 to a bracket 28, welded to the bonnet, and the arm 16 being connected to the bracket 28 by a link 32. A spring 46 is connected between the arms 16, 18 so as to hold the arm 18 down when the bonnet is closed but passes to the other side of the pivot 22 as the bonnet is opened to exert a hold-open force on the arms.
Patent GB-499154-A (GB)
Title: Improvements in tobacco pipes and cigar or cigarette holders
IPC: A24F1/22
Filed: 1937-09-24
Abstract: 499,154. Tobacco pipes &c. FRANCIS, E. L. (Dodge, C. W.) Sept. 24, 1937, No. 25995. [Class 130] A tobacco pipe or cigar or cigarette holder comprises a helical smoke tube 35 in a cooling chamber within the stem 17, the wall of the stem being formed with slots 27 through which air can pass between the coils of the tube 35 against the walls of a container 40 for cooling medium enclosing the tube 35. As shown, the ends of the tube 35 are fitted in the bores of the mouthpiece 18 and of a heatinsulating member 16 in the stem. The slotted member 17 of the stem is a push fit at 21 on the member 16 and at 25 on the mouthpiece. The bore of the mouthpiece terminates in a downwardly directed outlet 33 and a saliva outlet 34.
Patent GB-1584330-A (GB)
Title: Cams for actuating the valves of a reciprocating machine
IPC: F01L1/08
Filed: 1978-05-31
Abstract: Known cams for controlling the valves of a piston engine, by means of which the valve is opened by way of a sliding tappet (2) with plane base (3), exhibit high wear. In order to achieve optimum lubricating conditions in the area of the cam tip, the area of critical lubricating film formation, the cam (1) is formed so that the quotient <IMAGE> has either the value 0.15 </= gamma </= 0.25 or the value  gamma >/= 0.6, where rN is the cam radius of curvature, rG is the base-circle radius of the cam and z is the cam lift. <IMAGE>