baber/WOPTO huggingface dataset:
Patent GB-407407-A (GB)
Title: Improvements in glass grinding apparatus
IPC: B24D7/02
Filed: 1932-09-22
Abstract: 407,407. Grinding sheet glass. PILKINGTON BROS., Ltd., 703, Tower Building, Water Street, Liverpool, and WALDRON, F. B., Eccleston Park, Prescot, Lancashire. Sept. 22, 1932, No. 26382. [Class 60.] Wheels and other tools.-In a grinding tool 1 for grinding glass the operative surface 2 is formed by nogs or blocks 7 whose leading faces 13 are inclined forwardly (in relation to the direction of rotation) to radii of the tool and also forwardly away from the operative surface. The tool has a central aperture 4 separated from an annular channel 5 by a wall 10. The operative surface is divided up by circular grooves 6. The two inner rings are divided to form the blocks 7 by inclined grooves 8 but the grooves of the outer ring do not extend to the periphery of the disc. Abrasive is supplied to the central aperture through a hole 9 and passes through apertures 12 to the channel 5 and thence to the grooves. In a modification the tool may be made by bolting blocks on to a flat disc. The grooves 6 may be such that the inner face of each block is inclined inwardly away from the operative surface. The invention is particularly applicable to the grinding of the underside of a glass sheet.
Patent GB-208807-A (GB)
Title: Improvements in taps, cocks and the like
IPC: F16K43/00
Filed: 1922-09-30
Abstract: 208,807. Warne, W. T. Sept. 30, 1922. Double beat valves.-The jumper of a screw-operated valve is arranged on the pressure side of the seating and is provided with a tapered portion which enters the passage-way to produce a gradual opening and closing. The valve member comprises a metal disc f formed on a rod h which extends on both sides. A rubber or fibre washer i is held in position by a tapering nut k, and the upper end of the rod h is rounded for engagement with a cup-shaped recess q at the lower end of the screwed spindle n. The valve member is pressed towards its seating bv the fluid pressure and by a spring l. A gradual closure of the fluid passage is ensured by the tapered form of the nut k which enters the passage. In a modified construction, the part k is an integral part of the valve structure and its base is surrounded by an annular washer.
Patent GB-464919-A (GB)
Title: Improvements in or relating to television transmitting and the like systems
IPC: H01J31/26
Filed: 1935-09-24
Abstract: 464,919. Television transmitters. LUBSZYNSKI, H. G. Sept. 24, 1935, No. 26497. [Classes 39 (i) and 40 (iii)] An electrostatic image is formed on a doublesided mosaic 2 of insulated conducting elements which are periodically restored to a fixed datum potential by scanning with a light beam 9 which produces a transference of electrons between the elements and an auxiliary electrode 4, and the restoration produces signals in a circuit 5 associated with a plate which is capacitively associated with the mosaic. The scanning light beam falling on the transparent photo-electric electrode 4 produces low-velocity electrons which discharge the positive charges on the elements of the mosaic which have accumulated through the emission of photo-electrons emitted to an annular anode 3 under the action of the optical image. The signal plate is the continuous grid on which the photo-electric mosaic is formed as described in Specification 447,824. According to modifications : the image is projected on a photo-electric electrode and an electronic image focused on the mosaic, Fig. 2 (not shown) ; the insulation between the elements of the mosaic projects beyond the elements and the screen 4 is in contact with the mosaic screen, Fig. 3 (not shown) ; a positive electrostatic image is formed on the mosaic, Fig. 4 (not shown). The scanning light may be produced by projecting the light from a cathode-ray tube on the electrode 4, or the fluorescent screen may be close to, or on, the electrode 4, and the cathode-ray gun in the same envelope. Specifications 442,666, 455,085, and 457,493 also are referred to.
Patent GB-789626-A (GB)
Title: Improvements in or relating to false twisting devices for textile yarns and the like
Inventor: SCRAGG ERNEST PHILIP RUSHTON
IPC: D02G1/06
Filed: 1955-09-16
Abstract: 789,626. Twist tubes for yarn crimping. SCRAGG & SONS, Ltd., E. May 8, 1956 [Sept. 16, 1955], No. 26516/55. Class 120(2) A twist tube assembly for use in crimping yarns and the like has a twist tube supported during rotation only by a pair of rollers and a driving belt. The tube 18 has a head 19 by which it may hang in a housing 10 wher inoperative and which is raised from engagement with the housing by the belt 21 when driven. To bring the tube 18 into contact with the belt 21, the housing 10 is moved by a lever or like sys tem whereupon the upper edge of the belt contacts a conical portion 20 of the tube to raise the latter. Rollers 15 against which the tube 18 is pressed may be made of metal or plastic and may be covered with cloth of cotton, nylon or polyester fibre.
Patent GB-1072365-A (GB)
Title: Gyroscopic compasses
IPC: G01C19/38
Filed: 1964-06-26
Abstract: 1,072,365. Gyroscopic apparatus. SPERRY RAND CORPORATION. June 26, 1964 [June 27, 1963 (2)], No.26628/64. Heading G1C. In an arrangement for orienting and levelling the directive element of a gyrocompass, in which the gyrocompass comprises a hollow sphere 15 serving as the directive element and containing an electrically driven rotor 16 spinning about a first normally horizontal axis K, a gimbal 22 on which the element 15 is mounted with freedom about a first normally vertical axis YY, a ring 23 on which the gimbal 22 is mounted with freedom about a second normally horizontal axis XX, and a pickoff 28 between the element 15 and ring 23 controlling a servomotor 29 to move the ring 23 in follow-up relation to the element 15, normally angularly displaced spring and stop parts 37, 38 and 39, 40 are provided on the element 15 and gimbal 22, and on the gimbal 22 and ring 23 respectively to precess the element 15 about the axes XX and YY when engaged, electrical means being provided to supply a reversible biasing input to the servomotor 29 to sequentially displace the spring 37 and stop 38 parts to initially precess the element 15 from a level condition about the axis XX and then by engagement of the spring and stop parts 39, 40 secondly precess the element 15 about the axis YY, the biasing input to the servomotor 29 then being reversed to level the element 15 about the axis XX. The ring 23 is mounted for rotation in a yoke 24 about an axis 22 normally co-linear with the axis YY, and the yoke is mounted in a further gimbal 25 in turn supported in a binnacle 10 on a horizontal axis denoted 26. The servomotor 29 is carried by the yoke 24 and the ring 23 carries a compass card 13 a lubber line 14 being mounted on the gimbal 25. The binnacle 10 which has a transparent dome 12 is liquid filled to support the element 15 thus relieving the gimbal and ring bearings. Under start-up conditions the rotor 16 is run to speed, then with the pickoff 28 still in circuit the servomotor is biased by a hand switch control to turn the ring 23 in one direction or the other. This precesses the element 15 about the axis XX and by engagement of the spring and stop parts 37 and 38 the gimbal 22 is also rotated about this axis. After a certain movement, the stop 40 will engage one or other of the spaced spring parts 39, and this will precess the element 15 about the axis YY the ring 23 following by action of the pickoff 28. The bias to the servomotor 29 is removed when the element 15 is oriented with the meridian, this direction being known, and the element 15 may then be levelled about the axis XX by reversal of the bias input to the servomotor 29. Indication of this levelling is given by an indicator coupled to an electrolytic gravity reference 63 on the gimbal 22. After initial levelling the gravity reference 63 maintains the element 15 level by way of a torquing means 64. A suitable control circuit is described in the Specification.
Patent GB-1511166-A (GB)
Title: Pipe union
IPC: F16L21/08
Filed: 1975-06-24
Abstract: 1511166 Pipe couplings P DOLAR 24 June 1975 26665/75 Heading F2G  A pipe union comprises a member 1 having a through bore with portions 2a, 2b of different diameters, an outer screw threaded part 4 being disposed in a position corresponding to the portion 2b of smaller diameter, and the portion 2a being such that it can house a pipe end inserted therein a seal being provided by a gasket 3, a backing ring 5 through which a pipe end can be inserted and fixed coaxially with the bore by means of two diametrically opposite bridge shaped appendices 6 so as to define an interspace 7 between the ring 5 and the member 1, and a pipe clamping sleeve disposed in the interspace, the sleeve having two semicircular bands 9 which may be tightened together by bolts 10 engaging lateral extensions 12 of the bands 9, the inner surfaces of the bands 9 being scored so as to grip a pipe inserted into the member 1, and the bands 9 having clips 14 thereon for engagement with the appendices 6 to retain the clamping sleeve within the interspace 7 when no pipe end is present.
Patent GB-747428-A (GB)
Title: Improvements relating to winches
Inventor: IRELAND LIONEL HUGH
IPC: B66D1/30
Filed: 1953-09-29
Abstract: 747,428. Winch drums. SAUNDERS-ROE, Ltd. Sept. 21, 1954 [Sept. 29, 1953], No. 26714/53. Class 78 (5). A winch includes inner and outer drums 1, 2 mounted coaxially, and having on their outer surfaces helical grooves 23 of opposite hands, the outer drum having in it near one end a slot or opening 24 through which the cable can pass to be wound on the inner drum, and means 6 for rotating the inner drum to wind cable on to it while feeding it axially from an extended position extending out of the outer drum at the end of the latter where the opening is situated to a nested position in which it lies within the outer drum. As shown, the drum 1 is mounted at one end upon screw-thread 11 formed upon sleeve 10 of drum 2 and at the other end upon splines formed upon driving-shaft 5, and said sleeve 10 of drum 2 is mounted at one end upon fixed screw-thread 14 and at the other end is freely and non-drivably supported by said shaft 5. In operation, the rope passes through slot 24 on to inner drum 1 which is rotated by shaft 5 so that said inner drum slides into the outer drum till the former is fully wound. At this point stop 22 on the inner drum engages pivoted fork 21 on the outer drum to effect a release of the latter from fixed abutment 19 and to begin to drive simultaneously the two drums. The two drums then move as one to the left along fixed screwthread 14 till the rope is fully wound on the outer drum, thus completing the winding on the two drums.
Patent GB-501154-A (GB)
Title: Improvements in or relating to apparatus for sterilising and conditioning air
IPC: A61L9/015
Filed: 1937-10-04
Abstract: 501,154. Electrical precipitation apparatus. WALTER, A. Oct. 4, 1937, No. 26773. Convention date, Oct. 3, 1936. [Class 39 (i)] [Also in Group X] In an apparatus for sterilizing and conditioning air for use in operating theatres, the air passes through a dust-precipitator comprising a nest of tubes 13 in the centre of each of which is a wire 14 kept at high tension by an electric device 10 having'rectifying valves 11, and a reversing switch 12, by which a positive or negative tension, or an alternating tension may be given to the wires.
Patent GB-640906-A (GB)
Title: Improvements in or relating to metal rectifiers
IPC: H01L21/06
Filed: 1946-09-06
Abstract: 640,906. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd. Sept. 6, 1946, No. 26836. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 25, 1947.] [Class 37] A metal rectifier comprises a body 1 of insulating material, e.g. glass or thermosetting plastic in which is embedded a conducting wire or rod 2 with its ends exposed, a layer 5 of rectifying metal, e.g. selenium or copper oxide contacting one of the ends and the adjacent face of the body and a counter-electrode 6 engaging the selenium ; a metal contact engages the other end of the wire and the adjacent surface of the body. The insulating body may be a rod or block cut into thin sections to form rectifier units. The wire may be aluminium or steel and its other end 7 is embedded in a metal contact plate 8. The selenium is applied by electroplating, as a powder, in molten form, or a layer of amorphous selenium is changed by heat to the crystalline form. Four wires 2 may be embedded as shown in Fig. 2, in the block 1, so that the end of each wire is adjacent the end of another wire. The rectifying ends 3 of the wires are arranged as shown, and a metal layer 4, e.g. of Wood's metal is applied to each pair of wire ends and covered by a metal layer 5 connected to an A.C. source to form a unitary rectifier bridge. In Fig. 5, four rectifiers 2 are embedded in an insulating block with their ends at opposite faces thereof. The rectifiers are parallel and selenium layers 4 are applied to cover the ends 3a ... 3d at opposite faces. Metal layers 5 serving as counter-electrodes where located over the selenium 4 are applied in parallel strips on both sides of the unit, each strip extending over a pair of ends of the rectifiers 2, the strips 5 on one side being at right-angles to the strips 5 on the other side. Thus one upper strip 5 covers rectifying ends 3a, 6b and the other upper strip covers electrode ends 6a, 6b, and each of the lower strips 5 covers one rectifying and one electrode end, so that when connected as shown, a rectifier bridge is constituted. The dimensions of the wire 2 may be increased to those of rods. The elements are electroformed and may be mass-produced.
Patent GB-242277-A (GB)
Title: Improvements in jigging conveyors
IPC: B65G27/20
Filed: 1925-10-27
Abstract: 242,277. Schenck Eisengiesserei und Maschinenfabrik Darmstadt Ges., C., Heymann, H., and Lehr, E. Oct. 31, 1924, [Convention date]. Jigging conveyers.-The trough a of a jigging conveyer, Fig. 1, is supported by links or blade springs b attached to vertical rods or blade springs c. In bearings a<2> on the underside of the trough is mounted a disc f which is rotated at high speed by a motor g and has a heavy weight f<1> secured to it. In order to bring the period of vibration of the oscillating structure into agreement with the period of the impulses imparted by the weight f<1>, the springs c can be varied in length &c. or sand, water, steel balls &c. can be added to or removed from containers attached to the trough a. The period can also be varied by adjusting the position of the weight f<1>. The weight is mounted in a drum h, Figs. 2 and 3, so that it can move radially but not axially. Grooves i<1> in the weight are engaged by projections on a shaft i<2> which can be moved longitudinally while the drum is rotating. The shaft i<2> is rotatably mounted on a nut k which is prevented from rotating by a key k<1>. The nut k is engaged by a spindle m which is actuated by a flexible shaft m<2> through worm gearing. The disc, motor, &c. may be enclosed in a suspended casing to the top of which the trough is secured. In a modification the vertical springs supporting the trough may be connected by a bar which is supported by horizontal springs extending from the top of uprights. When the trough is long, it is driven by two or more discs &c. which are coupled by shafts &c. so as to run in synchronism and in phase.
Patent GB-785149-A (GB)
Title: Improvements in or relating to rotary fluid control valves
Inventor: ALLEN VINCENT KILEY VAN
IPC: F16K11/074
Filed: 1955-09-20
Abstract: 785,149. Valves. ROBERTSHAW-FULTON CONTROLS CO. Sept. 20, 1955 [Feb. 16, 1955], No. 26895/55. Class 135. A header 16, Fig. 1, fixed in the lower part of the valve casing 10 is provided with a number, four as shown, parallel through conduits 26, 28, 30 and 32, Fig. 3, each opening into a copper tube 36, Fig. 1, and four normal flow conduits 26, 30 and 28, 32 which are interconnected by a closure member 38, with a lapped surface 39, that is rotatable on the lapped surface of the header in a fluid-tight manner. A dividing wall 40 divides the member 38 into low and high-pressure chambers 42, 44 the former chamber enveloping the tops of conduits 28, 32 and the latter enclosing the tops of conduits 26, 30; if the member 38 is rotated through 180 degrees the chambers 42 and 44 interconnect conduits 28, 30 and 26, 32 and provide for reverse flow through the associated refrigerating or other apparatus. A port 52 in the member 38 opens the interior of the casing 10 to the chamber 44 so that the fluid therein, acting on a larger area of the member 38 than does the fluid in the chamber 44, forces the member 38 on to the header 16, and to reduce this force during rotation of the member 38 there is provided a selector 54 pivoted on a pin 58 and free to rotate between two stops 60, 62, Fig. 2; the selector 54 is biased to the stop 62 by a spring 64. A port 68, Fig. 1, larger than the port 52, extends through the wall of the member 38 to place the interior of the casing 10 into communication with the chamber 42 during valve operation; the selector 54 normally covers the port 68 but when the port is open it enables the fluid in the casing 10 to flow into the chamber 42, thus reducing the force urging the member 38 on to the header 16. The selector 54 receives one end 74 of a flexible bellows 76 the other end of which is attached to a flange 18 on the casing 10, the bellows hermetically sealing the interior of the latter; a curved shaft 78 joins an operating handle 80 to the end 74 of the bellows. Rotation of the handle 80 first moves the selector 54 alone until the stop 60 is encountered whereupon continued movement of the handle causes the member 38 to rotate relatively to the header 16; upon releasing the handle 80 the spring 64 brings the selector 54 back against the stop 62 and covers port 68.
Patent GB-1115871-A (GB)
Title: Panelling arrangements
Inventor: HARDING BRIAN
IPC: E04C2/296
Filed: 1965-06-25
Abstract: 1,115,871. Partitions. METAL SECTIONS Ltd. 17 June, 1966 [25 June, 1965; 30 Sept., 1965; 1 Dec., 1965], Nos. 26971/65, 41504/65 and 50931/65. Headings E1B and E1W. Partition panels each have a top-hat sectioned metal frame 26 with additional edge flanges, e.g. 29 and 30 parallel to its major surfaces, an external metal facing sheet 20 with L-sectioned edge flanges separated from the frame by a grooved wooden frame 31, and an internal facing sheet 22 of, e.g. asbestos, adjacent a second wooden frame 37. A solid core of foamed polyurethane may be employed, or an intermediate sheet 61 of, e.g., asbestos, may separate the internal sheet from the foamed core, the space 62 as formed being left empty or filled with a sound insulation material. The panels may be erected to form a partition which may include a window 79 by using floor and ceiling members 84 and 90 respectively, stanchions 76 formed similarly to the panels, and square tubes e.g. 86 which may have tensioning rods passing therethrough (Figs. 1-3, not shown) or may have threaded end bores by which the tubes are tensioned. Metal boxes, e.g. 119 (Fig. 12, not shown) may be incorporated in the panels and stanchions to locate the bolts by which longitudinal adjacent panels are interconnected via holes in the tubes 86.
Patent GB-319486-A (GB)
Title: An improved adjustable load lifting and transporting apparatus
IPC: B66F3/22
Filed: 1928-09-20
Abstract: 319,486. Palomeras Mallofre, J. M., and Cardona Nabes, P. Sept. 20, 1928. Lever-actuated platform load-handling appliances. - The platform 8 is carried by the upper members of the lazytongs linkage 7, the lower members being mounted on a shaft 2 supported on the base 1. Slotted extensions 16 of the lazytongs carry racks 15 engaging with pinions on transverse shafts 12 fitted with worm gearing 11 for operation by a handle 9 so as to extend or retract the linkage to raise or lower the platform. Racks 21 pivoted to the cross-bars of the lazytongs are adapted to engage adjacent crossbars so as to give rigidity to the structure when extended. The ends of the racks 21 are connected by cords 22 to facilitate disengagement. A frame 3b is rigidly mounted on the shaft 2 and carries toothed segments 5 engaged by pinions 6 on a cross-shaft which is rotated to tilt the lazytongs sidewise when required, securing bolts 25 being provided to secure the structure in the inclined position.
Patent GB-1321107-A (GB)
Title: Electrical switch arrangement in combination with a hydraulically  operable reciprocating device
IPC: F15B11/08
Filed: 1970-06-04
Abstract: 1321107 Tilt jacks; automatic control CATERPILLAR TRACTOR CO 4 June 1970 [12 June 1969] 27059/70 Heading E1F [Also in Divisions Fl and H1] A hydraulically operable device includes a first member reciprocable rectilinearly relative to a second member, at least one switch mounted on the second member, and a switch actuating element suspended by elastic means connected between the members. As shown, Fig. 3, actuating magnet 71 is suspended by springs 81, 83 within tube 73 and, Fig. 2, between piston rod 17 and cylinder portion 55 of a hydraulic tilt jack 16 of an excavating bucket. A proportion of the piston's movement is imparted to the magnet, which actuates cylinder-mounted proximity switches 65, 67 as it passes by them. Signals from the switches withdraw a detent means, via a solenoid-controlled hydraulic jack, to stop the telescoping of the jack 16, and so automatically stop bucket tilt in the carry or dump positions. The magnet may be suspended within tube 73 on the outside of the cylinder. The range of movement of the magnet may be altered by changing the number of free coils of the springs or by moving the switches by rotating them in eccentric mountings.
Patent GB-318968-A (GB)
Title: Improvements in and relating to paper bags
IPC: B65D30/18
Filed: 1929-09-06
Abstract: 318,968. Bates International Bag Co., (Assignees of Hoppe, E.). Sept. 13, 1928, [Convention date]. Paper and like bags.-In a multiply paper bag having extensions adapted to form closure flaps, the plies of opposed flaps are separated and folded inwardly, the plies on one side being secured between plies on the other side. At each corner of a length of three-ply bag tube 1 having pleated sides 3 and extension 10 at one corner, a valve is formed in the usual manner, the one having the tab or extension 10 becoming a filling valve; the corners are thereby turned inwards as at 11, 12, 14, 15, the corners 11, 14 and 15 being similar to each other and the filling valve corner 12 slightly different. The end of the tube, say that comprising the corners 11, 12, is opened out to the position shown in Fig. 4<a>, the side flaps are folded inwards to crease them along the lines 27, and then re-opened preparatory to cuts 28 - - 33 being made in the top two plies of the tube. The cuts extend from the corner 11 along the creases 27 to the edge 19 of the folds of the corner ; the cuts 30 - - 33 are in the inclined edge of the corner, the cuts 31, 33 being in the middle ply beneath the cuts 30, 32. When'the corners are opened out, they appear as in Fig. 5; the filling valve end comprises the tab 10 and cut tabs 36, 37 and the opposite end an uncut tab 11<a> and cut tabs 38, 39. The tabs 36, 37 are folded inwards on the tab 10, the side flaps 41, 42 are folded on the tabs 36, 37 and the uncut tab 11<a> and pasted thereon, a pasting tape being also placed on the overlapping portions of the side flaps 41, 42, The end tab 39 and next side flaps 44, 45 and finally the outside tab 38 and flaps 47, 48, Fig. 9, are similarly treated. The cuts 28, 29 may be omitted. The Specification as open to inspection under Sect. 91 (3) (a) describes a single ply bag having no side pleats, the flaps 65, 66, Fig. 14 (Cancelled), being turned inwards and secured by a pasting tape 66. This subject-matter does not appear in the Specification as accepted.