baber/WOPTO huggingface dataset:
Patent GB-658118-A (GB)
Title: Improvements in or relating to multi-stage compressors
IPC: F04B25/00
Filed: 1948-12-31
Abstract: 658,118. Air compressors. MOREILLON, A. E. Dec. 31, 1948, No. 33578. [Class 8(i)] A multi-stage air compressor comprises a low pressure stage cylinder 2, a parallel intermediate stage cylinder 3, formed with two different diameters and containing a stepped piston 17, the compression chamber being formed by the annular space defined by the stepped.piston and cylinder and a high-pressure stage cylinder 4 coaxial with the cylinder 3, and containing a piston 33 operatively connected to the piston 17 by a ball and socket joint 21. The piston 17 and the low pressure piston are operated by separate crankshafts 25, 11 gear driven from a shaft 27. The cylinder 4 is surrounded by a helical chamber 30 supplied with oil for cooling purposes and lubricates the piston 33 through a duct 66. The cylinders are finned and finned interstage coolers are fitted between each stage. Specifications 637,194, 637,196 and 637,199, [all in Group XXXVI], are referred to.
Patent GB-378736-A (GB)
Title: Steel pit-prop
IPC: E21D15/54
Filed: 1931-12-05
Abstract: 378,736. Mine props. BAIRD, D., Wellesley House, East Wemyss, GEMMELL, D. C., Wemyss Villa, Buckhaven, and WEMYSS COAL CO., Ltd., East Wemyss, both in Fife. Dec. 5, 1931, No. 33774. [Class 20 (ii).] A pit prop is formed from a length of railway rail by removing part of the web and rail head and bending over the free flange end to enclose the end of the rail and part of the rail head, as shown in the Figure. One or both ends of the rail may be so treated.
Patent GB-1393376-A (GB)
Title: Drain clip for surgical drain
IPC: A61M25/02
Filed: 1972-07-19
Abstract: 1393376 Clips for retaining surgical drains COILFORM CO INC 19 July 1972 33866/72 Heading A5R [Also in Division E2] A clip for preventing a surgical drainage tube from slipping back into the body comprises an elongate base 24 having an opening therein to receive the tube at which are a plurality of spaced gripping elements arranged in opposed interdigitate sets. The elements comprise fingers 36 having their ends shaped to provide teeth which grip the tube to prevent it slipping backwards but allow it to be withdrawn from an incision.
Patent GB-848745-A (GB)
Title: Improvements in or relating to axial thrust needle bearings
IPC: F16C33/48
Filed: 1958-10-22
Abstract: 848,745. Roller bearings. SCHAEFFLER, W., and SCHAEFFLER, G., [trading as INDUSTRIEWERK SCHAEFFLER o.HG.]. Oct. 22, 1958, No. 33870/58. Class 12 (1). An axial thrust needle bearing comprises a race ring 16, Fig. 3, a cage 12 formed with a plurality of radially extending apertures for accommodating needles, the apertures having a width less than the diameter of the needles, and means connecting the race ring 16 and cage 12 together to form a unit which retains the needles. As shown in Fig. 3, the connecting means comprises an annular projection 13 on the cage which engages a flanged portion 15 of the race ring 16. Fig. 4 shows a modified form of this arrangement, the inner ring 25 of the thin cage 22 being guided by the end face 25 of an inner flange 18 on the race ring 17. In another modification, a cage 30, Fig. 5, has an axially extending flange 29 provided with a portion 28 which embraces an annular projection 27 on the race ring 26. The outer race may be flanged to provide an outer abutment surface 42, Fig. 6, and a lubricant space 44. The cage may have an inner locating flange 48, Fig. 7. In a further modification, the cage has flanges 62, 63, Fig. 9, which embrace portions 59, 61 of the race 57. In the embodiment shown in Fig. 10, only an inner flange 70 embraces a portion 69 of the race ring.
Patent GB-845528-A (GB)
Title: Improvements in or relating to optical projection pantometers
Inventor: DIETRICH CORNELIUS FRANK
IPC: G02B21/00
Filed: 1956-11-06
Abstract: 845,528. Optical gauging-apparatus. OPTICAL MEASURING TOOLS Ltd. Feb. 6, 1958 [Nov. 6, 1956], No. 33892/56. Class 106 (2). [Also in Group XX] Apparatus for gauging by projection comprises a rotatable workpiece holder 13, a feeler 17 urged into contact with the workpiece 14, a projection system comprising a pair of lenses 24, 25 and a screen 23 bearing a representation 28 of the desired shape of the workpiece 14, and an inverting mirror assembly 26 rotating, at half the speed of rotation of the workpiece 14, about the optical axis of the projection system. The mirror assembly 26 rotates in the same direction as the workpiece 14 and this allows the representation 28 to be held fixed, the image 29 of the feeler 17 appearing to move around it.
Patent GB-461931-A (GB)
Title: Improvements in elastic yarn and process of making the same
IPC: D02G3/36
Filed: 1935-12-06
Abstract: 461,931. Covering cores. CLAYTON, T. A. (United States Rubber Products, Inc.) Dec. 6, 1935, No. 33915. [Class 109] [Also in Group IX] Elastic yarns comprise a tensioned and twisted elastic core and a covering wrapped helically around in a direction opposite to the twist of core and holding the core in tension, the twist in the core being sufficient to balance the helical windings of the covering. The relation between the number of twists in the core to balance the helical windings of the cover varies with the tension, size and flexibility of the core, and the size and flexibility of the covering. Constructional data are given of different yarns made in accordance with the invention, a balanced condition being defined as one in which the yarn hangs straight in the skein without tending to twist or kink. The covering may comprise a wrapping of loosely aggregated fibres, such as drafted roving 36, Fig. 3, and a second wrapping of spun yarn may be wound in the same direction as the first ; or a number of yarns 37, Fig. 4, may be used in the second wrapping to sheath the inner soft cover of roving ; or spun yarn 38, Fig. 5, may be wrapped around the core. Cotton, wool, worsted, spun or unspun silk, spun or unspun rayon, or suitable combinations of such materials may be used for the covering. The core is preferably of rubber such, for example, as that produced as described in Specification 214,615, [Class 70]. The yarns may be made on any spinning-machine. As shown in Fig. 1, rovings 2 are drawn by rollers 6, 8, and are twisted by ring and traveller apparatus around a core 10 of twisted and tensioned rubber drawn from a braked bobbin, a second covering being drawn from a bobbin 19. The roving may be drafted to the required extent in a separate machine, and is then led with the core to common feed rolls in a machine, Fig. 2 (not shown) ; a machine of this kind may be used to impart the original tension and twist to the core. Yarns comprising a twisted core and a covering 38, Fig. 5, of spun yarn may be formed on a machine such as is ordinarily used for covering an untwisted core with two oppositely wound coverings, the core being carried by the first hollow spindle and twisted at delivery by a ring and traveller arrangement and then passed through the second spindle which carries the covering yarn.
Patent GB-355129-A (GB)
Title: Improvements in or relating to fusible cut-out elements
IPC: H01H85/08
Filed: 1930-11-11
Abstract: 355,129. Fusible cut-outs. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and HEATH, A. A., Kantarra, Queen's Road, Kenilworth, Warwickshire. Nov. 11, 1930, No. 33916. [Class 38 (i).] A fusible element as described in Specification 341,281 has the centre portion b surrounded with a heatinsulating material to confine the rise of temperature and therefore the point of rupture to that part. The material may consist of beads, a tube or refractory powder f suitably enclosed. The invention may be applied to a single fuse wire.
Patent GB-1118712-A (GB)
Title: Vehicles having hoods
Inventor: CHAPLIN WILLIAM DAVID
IPC: B60J7/04
Filed: 1965-08-09
Abstract: 1,118,712. Sliding roofs or doors; wagons for transporting special loads. CRANE FRUEHAUF TRAILERS Ltd. 9 Aug., 1965, No. 33941/65. Headings B7B and B7L. A rail (or road) vehicle for transporting hot ingots comprises a frame 1 having an insulated compartment 4 for an ingot, a pair of hoods 6 (only one complete hood being shown) having wheels 7 for moving along rails 5 on the frame, each hood being movable towards one end of the frame by means of an arcuate arm 9 pivoted at one end to the frame at 10 whilst its other end has a pair of rollers 11 movable in a pair of opposed vertical guides 13 on the closed end 8 of the associated hood 6, the arm 9 being pivotable to move the hood in either direction by an extendable means 14, 15 pivoted to the frame at 16 and to the arm at 17. The means comprises a double acting hydraulic cylinder 14 and piston having a rod 15. However the means may be, e.g. a rotatable screw threaded through a nut on the arm and rotated by a reversible electric motor.
Patent GB-1152184-A (GB)
Title: Improvements in or relating to the Treatment of Compound Rubber
Inventor: MCGEE ROBERT
IPC: B29B7/00
Filed: 1965-08-10
Abstract: 1,152,184. Endless conveyers. VITAFOAM Ltd. 24 Oct., 1966 [10 Aug., 1965]. No. 34105/65. Heading B8A. [Also in Division C3] Apparatus for cooling compounded rubber includes a series of endless conveyer belts 11-15 over Which a ribbon 17 of rubber is trained in a sinuous disposition. Means (22), (Fig. 3, not shown) for directing cooling fluid on to the ribbon are provided. Means for varying the rate of movement of the conveyers to compensate for contraction of the ribbon comprises a lever 28 (Fig. 2) which operates potentiometers (not shown) in circuit with variable speed drives of the conveyers 11-15.
Patent GB-452898-A (GB)
Title: Improvements in or relating to frictional couplings
IPC: F16D7/02
Filed: 1935-12-10
Abstract: 452,898. Shaft couplings. KEMPER, J., 12, Langestrasse, Neuenkirchen, Wiedenbr³ck, Germany. Dec. 10, 1935, No. 34180. [Class 80 (ii)] A frictional coupling for centrifugal separators comprises a driving pulley 8 with friction facings 9 free mounted on a shaft 1 between disc members 10, 12 which are pressed together by a spring 13. The disc member 10 is secured to the shaft or may form part of it, the plate 12 being capable of axial movement to engage the pulley under the tension of the spring 13 which is manually adjustable by a nut 15 so that the pulley can be pressed gradually into operative engagement with the disc members to gradually take up the drive. Specification 419,654 is referred to.
Patent GB-797649-A (GB)
Title: Vibrator motor
IPC: H02K33/04
Filed: 1956-11-09
Abstract: 797,649. Reciprocating motors. SCHICK, Inc. Nov. 9, 1956 [July 6, 1956], No. 34357/56. Class 35. In a vibrator motor for reciprocating a driven element, e.g. an electric shaver cutter and comprising a substantially U - shaped field magnetic core 1, part of which is encircled by a field coil 20, an armature magnetic core 10 mounted for pivotal movement relative to the field core 1, and a spring 30 acting on the armature, the armature core is substantially L-shaped and has its vertical leg 11 disposed along the outer side of one field core leg 3 and pivoted at its lower end on the field core, the horizontal leg 12 of the armature extends over the free end of one leg 3 into proximity with the free end of the other field core leg 2, and the spring 30 when the motor is unenergized holds the armature in a median position in its stroke. As shown, the armature is pivoted by a knife edge 15 at its lower end which edge engages a notch 14 in a shoulder 13 in the leg 3, and a further shoulder 21 seats the coil 20 which also encircles the armature leg 11 and is retained in position by a deformable finger 41 on a side plate 40 riveted to the field core 1 and having an upstanding lug 42 to which one end of the spring 30 is riveted; the other end of spring 30 seats in a notch 43 in the armature core. Adjacent faces of the armature and field core legs 11, 3 are complementarily arcuately curved and provide a tapering air gap therebetween when the motor is not energized. At the top of the armature a tip 33 is movable in operation into a complementary recess 32 in the field core leg 2 and either an actuator 31 or an extended core lamination, not shown, projects to connect to the driven element. The motor is for operation by alternating current.
Patent GB-435785-A (GB)
Title: Improvements in or relating to gas and vapour discharge tubes and to circuit arrangements incorporating the same
IPC: H01J17/04
Filed: 1934-11-29
Abstract: 435,785. Discharge apparatus; amplifying, detecting, and generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Hansell, C. W. ; Port Jefferson, Long Island, New York, U.S.A.) Nov. 29, 1934, No. 34363. Convention date, Nov. 29, 1933. [Classes 39 (i) and 40 (v)] A gas discharge tube has two large main electrodes 3, 5, Fig. 1, spaced at a distance apart, and two small control electrodes 7, 9, so shaped and arranged as to form a needle gap across the path between the main electrodes, a potential producing ionization, but insufficient to start a discharge, being applied between the main electrodes, and a low potential being applied between the control electrodes so as to start and control the main discharge, the output current being limited, for example, by a resistance, so that an unstable or arc discharge is prevented. The tube may be used in circuits for detection, amplification, demodulation or frequency multiplication. Signals to be amplified &c. may be applied directly, or superposed on a D.C. potential, across the control electrodes. The discharge may be controlled by a magnetic field. In the low-frequency amplifying circuit shown in Fig. 3, the input circuit consists of two inductances L, Ll coupled with an inductance L<2>, a battery 20 and a byepass condenser C. The output circuit between the electrodes 3, 5 is similar. Resistances R, R<1> limit the discharge current. In a demodulation circuit, Fig. 4 (not shown), the input circuit is tuned to the frequency of the carrier, and the output to the modulation frequency. For frequency multiplication, Fig. 5 (not shown), the inductances in the output circuit are coupled with a circuit tuned to an even harmonic of the fundamental.
Patent GB-886475-A (GB)
Title: Improvements in or relating to liquid mixing apparatus
IPC: B01F5/06
Filed: 1960-10-07
Abstract: 886,475. Mixing liquids. ANDERZOEKINGSINSTITUUT RESEARCH N.V. Oct. 7, 1960 [Oct. 13, 1959], No. 34418/60. Class 86. An apparatus for mixing liquids comprises a tubular casing 1 in which tortuous passages are formed by inserting therein a stack of resilient elements having channels by means of which the liquid is formed into streams which are repeatedly divided and re-formed. The casing has flanges 2, 3 to which are secured end caps 6, 7 between which the elements are compressed.- The end caps have central passageways 11 which are circular at the outer ends and square at the inner edges 21 which bear on the mixing elements. Two rods 14 are received in pockets 13 in the end caps. Each resilient mixing element, Figs. 3, 4 and 5, has two rectangular openings 29, 30, Fig. 3, which converge to central square throats 15, 16 and then diverge to rectangular openings 27, 28, Fig. 5, the longer dimensions of which are at right angles to those of the openings 29, 30. The elements have projecting square beads 19, 20 on their end faces by which they seal against each other and against the end caps of the casing; locating lugs 22, 23 received in recesses 24, 25; and grooves 17, 18 to accommodate the rods 14. Nine elements as shown are assembled into a stack alternately with nine others which are formed as mirror images of them; the elements are externally cylindrical and in the uncompressed state will slide into the casing 1. The stack is of such length that it is compressed when the end caps are drawn up, sealing the elements against each other and against the end caps and expanding them to seal also against the wall of the casing.
Patent GB-922146-A (GB)
Title: Tool holder turret
IPC: B23Q16/08
Filed: 1961-09-26
Abstract: 922,146. Lathe details. A. AFFOLTER. Sept. 26, 1961 [Sept. 29, 1960], No. 34521/61. Class 83 (3). An indexible tool-holder comprises a pivotpost 1 adjustable along a support 4 and clamped by a bolt 5 with a T-end 2. A tool-holder support 7 is rotatable around the pivot and has fixed thereto, by a set-screw 12, a sleeve 9. The top edges of the sleeve 9 and pivot-post 1 are toothed at 10 and 13 respectively. A further sleeve 15 with a key 16 is clamped above the pivot post by the bolt 5 and, slidable but non- rotatable relative thereto, a ring 14 is provided with teeth 17 on its underface which are of a width to extend across both sets of teeth 10, 13. Rotation of a handle 20 depresses, against spring pressure, the ring 14 and thus locks the two sets of teeth 10, 13 against relative rotation. A tool-holder 36 is secured to the side of the support 7 by an eccentric bolt 45 and a pin 41, the latter acting as a height gauge in conjunction with a screw 49 provided on the holder. Friction surfaces may be used in lieu of the toothed locking means.
Patent GB-307561-A (GB)
Title: Improvements in or relating to plant for dealing with sewage
IPC: E02B8/02
Filed: 1927-12-20
Abstract: 307,561. Pulsometer Engineering Co., Ltd., and Bj÷rnstad, J. Dec. 20, 1927. Plant.-Sewage, which is to be discharged into the sea, is passed through a screen, and the solid matter retained by the screen is disintegrated and returned to the unscreened liquid. Sewage enters by a pipe 3 the inlet compartment 1 of a chamber fitted with a screen 5. The outlet compartment 1<a> of the chamber is connected to the sea by a pipe 4. Solid matter retained by the screen is delivered by scrapers or blades 6<a> on an endless band 6 to a plate or platform 8 and thence to a hopper 9. The lower end of the hopper is connected by a valved pipe 10 to the compartment 1<a> and some liquid passes with the solid matter from the hopper to a disintegrator 11. The disintegrated matter is returned through a pipe 12 to the compartment 1. The apparatus is situated mainly below the floor of a building 2, a motor for driving the band 6 being placed on the floor of the building. The disintegrator may be operated discontinuously, an attendant raking the solid matter from the platform 8 into the hopper and, as required, opening the valve in the pipe 10 and starting a motor 14 which drives the disintegrator.
Patent GB-342408-A (GB)
Title: Improvements in or relating to moulding or vulcanising apparatus or presses
IPC: B29D30/06
Filed: 1929-11-14
Abstract: 342,408. Moulding or vulcanizing rubber. MACBETH, C., 67, Norwich Union Chambers, Birmingham. Nov. 14, 1929, No. 34868. Addition to 302,975, [Class 70, Indiarubber &c.]. [Classes 70 and 87 (ii).] The apparatus of the parent Specification is modified by the provision of a support for the tyre &c. which is coaxial with the mould segments when the latter are closed, and is moved when they are opened to a position between them, means being also provided for the clamping of bead rings holding the tyre to the support. A fixed mould segment 1 has a segment 2 hinged thereto and operated by a rack 26 and pinion 25 and toggle links 30, 32. Mounted on the hinge pin 3 is an arm 50, 51 carrying the tyre support and operated by the rack 26 and pinion 25 and links 33, 53, with pin and slot connection 54, 55 to allow a lag in opening and shutting. The tyre-support consists of a cylinder 46, Fig. 1, with a double-acting piston 56 with rod 57 extending through the cover plate 45, to which plate the lower hollow bead ring 43 is bolted. The upper bead ring 42 is attached to a spider 62 capable of being attached to the pistonrod 57 by a bayonet joint, and suspended by a chain 65 passing over an arm 68 mounted on the hinge-pin 3, and constrained to move with the arm 50 by a rod 73. In operation, with the apparatus in the position of Fig. 4, a tyre cover &c. is placed on the bead ring 43, the spider 62 is lowered and connected to the piston-rod 57, pressure is admitted to the top of the cylinder 46 to clamp the rings together, and the rack 26 is operated to draw the tyre into the mould 1, and to close the segment 2 upon it. Channels 16 allow for spewing during vulcanization.
Patent GB-919532-A (GB)
Title: Improvements in or relating to lubricating means for universal joints between rotatable spindles
Inventor: SMITH FREDERICK LEEDHAM
IPC: B21B35/14
Filed: 1958-10-30
Abstract: 919,532. Universal Joints. DORMAN LONG (STEEL) Ltd. July 14, 1959 [Oct. 30, 1958], No. 34879/58. Class 80 (2). [Also in Group XXXIV] A lubricating system for universal joints at the ends of a shaft 10 comprises annular lubricating boxes 42 encircling the shaft 10 on each side of a central bearing 31, pipes 50 and conduits 26 connecting the boxes 42 with surfaces of the joints to be lubricated, and a distributer 53 through which lubricant under pressure is supplied to the boxes 42 via pipes 49 and to the bearing 31 through a pipe 55. Each lubricating box 42 surrounds a collar 39, secured to the shaft 10, to form a circumferential oil groove 41 which is sealed by gland rings 44. The bearing 31 is mounted in a housing 32 which is carried by a cradle 33 supported by links 34. In a modification, shown in Fig. 6, the central bearing housing 32 forms a lubricating box which communicates with the parts of the joints to be lubricated through drilled passages 63; 62, 64.
Patent GB-950400-A (GB)
Title: Improvements in aeroplanes
Inventor: WALLIS BARNES NEVILLE
IPC: B64C3/40
Filed: 1958-10-30
Abstract: 950,400. Aircraft. VICKERS-ARMSTRONGS (AIRCRAFT) Ltd. Nov. 3, 1959 [Oct. 30, 1958], No. 34910/58. Headings B7G and B7W. In an aeroplane as claimed in Claim 1 of Specification 832,760, the wings are connected to the body by universal pivots and means are provided for imparting to the wings, during movement in sweep, a controlled rotary adjustment about their spanwise axes, the extent of such adjustment being determined by the desired correction of the longitudinal dihedral angle. As shown, universal pivot C connects wing B with body A. Wing spar D is bifurcated to form divergent limbs E, F, the ends of which move along tracks G, H shaped so as to rotate the wing B about its axis on sweep movement. Specification 861,230 also is referred to.