baber/WOPTO huggingface dataset:
Patent GB-1517412-A (GB)
Title: Drive means for workpiece spindles of multispindle automatic machine tools with indexable spindle drums
IPC: B23Q5/14
Filed: 1976-01-27
Abstract: 1517412 Change-speed gear GILDEMEISTER AG 27 Jan 1976 [31 Jan 1975] 03117/76 Heading F2D [Also in Division B3] In a multi-spindle machine tool in which work spindles 14 carried by an indexable drum 15 have toothed wheels 12, 13 to be driven by a common wheel 11, and an additional gear wheel 28 is located adjacent at least one spindle position whereby the wheel on the spindle indexed to that position can be shifted into mesh with the wheel 28 to be driven at an alternative speed, the shift is facilitated by the provision of means for driving the wheel 28 from the drive train for the wheel 11 in synchronism with the spindle wheel such that tooth spaces on the latter lie opposite teeth on the wheel 28. A motor 1 which drives the wheel 11 through shafts 3, 10 interconnected by a toothed belt or chain also drives, through a toothed belt or chain 16, a shaft 17 which drives the wheel 28 in synchronism with a spindle wheel 13 through a toothed clutch 24, 26. Alternatively according to Fig. 2 (not shown), the shaft 10 is driven by one motor (20) and the gear 28 &c. by another motor (la), the two motors being electrically synchronized. Axial movement of the wheel 13 out of mesh with the wheel 11 and into mesh with the wheel 28 is effected by a lever 37 which at the same time disengages the toothed clutch 24, 26 leaving only a friction clutch 29 coupling the wheel 28 with the shaft 17. Ratio shift is then effected by disengagement of the clutch 29 and engagement of a friction clutch 34 to bring trains 30, 31 and 33, 28 into effect. Before the spindle wheel 13 is returned to mesh with the wheel 11  the clutch 34 is disengaged and the clutch 29 engaged, whereafter the clutch 29 may be briefly disengaged to allow the teeth of the clutch 24, 26 to interengage. It is stated that the gearing 30, 31 &c. may be modified to provide more than one alternative speed.
Patent GB-543447-A (GB)
Title: Improvements in welding
IPC: B23K9/035
Filed: 1941-03-08
Abstract: 543,447. Uniting by fusion; thermo-aluminic processes. LINDE AIR PRODUCTS CO. March 8, 1941, No. 3169. Convention date, April 24, 1940. [Gass 83 (iv)] In fusion welding, the edges of the parts are arranged in juxtaposition and molten weld metal is deposited progressively to fill the space therebetween and simultaneously to form a reinforcing bead on the back side the molten metal being prevented from running along the back of the parts ahead of the deposited metal. A seam containing a uniform depth of weld metal is thus obtained. The edges of the plates may be left square or cut to form a V- or U-shaped groove in either case a substantial gap being left between the edges. Welding may be effected by electric arc or oxyacetlylene flame or by the thermoaluminic process. The process described in Specification 433,723 may be used. A short backing bar B which may consist of a high conductivity metal such as copper may be provided with a tapered groove 8, the narrow end of which terminates on the surface of the bar short of the end 14 and being arranged slightly in advance of the point at which molten metal is deposited from the electrode R. The molten metal in the groove 8 is prevented from flowing ahead of the weld due to the fact that the groove terminates at this point the plates M moving to the left, Fig. 2, relatively to the electrode R and backing bar. The groove at this end corresponds in shape to the desired bead 20. As the plates move to the left the bead moves out of contact with the bottom of the groove so preventing drag of the solidified metal thereon. The backing bar may be cooled by circulation of heat absorbing medium. In another form a backing bar B<SP>1</SP> extending the length of the seam has a groove 30 of uniform cross-section and depth to receive solid fusible metal such as a rod 32 of a metal similar to that of the weld rod R which in this case is traversed along the seam. The unmelted solid portion of the rod prevents molten weld metal from being blown through the groove ahead of the welding point. The rod is progressively melted and unites with the weld metal to form the bead. The rod may be replaced by a granular mineral composition such as prefused silicates of alkaline earth metals and magnesium. The unfused portion ahead of the welding point prevents molten weld metal from running ahead in the groove. The material is progressively 'fused and flows to the top of the weld. The groove in the backing bar may be semi-circular, rectangular, triangular &c. and the rod 32 is of the same shape as the groove.
Patent GB-1480152-A (GB)
Title: Electronic private telephone exchange of small capacity
IPC: H04Q3/52
Filed: 1975-01-24
Abstract: 1480152 Automatic exchange systems BELOIANNISZ HIRADASTECHNIKAI GYAR 24 Jan 1975 3191/75 Heading H4K In a centrally controlled exchange having a switching array 4 of static electronic crosspoints each subscriber line circuit 2 has associated therewith a subscriber store unit 5 which stores the current state of the corresponding line and the switching network 4 has a number of control inputs, each of which is connected to a subscriber store unit 5 individual thereto. A clock signal generator 7 defines cyclically occurring time slots individual to each subscriber store unit 5 in which each store is coupled for the passage of control signals to the common control unit 6 by way of a connection common to all the stores 5. In the small exchange disclosed each subscriber line circuit 2 is coupled to one of a pair of connection paths 47, 48 by respective transistor crosspoints 46a, 46b the control inputs 13a, 13b of which extend to the corresponding subscriber store unit 5. Four wire switching is used employing a pair of transistors (Fig. 4, not shown). The central control 6 (Fig. 2, not shown) scans the store units 5 to determine the off-hook, on-hook, dialling and engaged status of the line and includes a register for receiving the identity of a called subscriber. The central control allocates one of the connection paths 47, 48 to the connection, marks the path as busy in a connection store, and sends the two subscriber store units 5 information as to which crosspoints 46a or 47b to operate. Supervisory tones are sent to subscribers under the control of central control 6 by sending an appropriate command to the subscriber store unit 5.
Patent GB-1218535-A (GB)
Title: Electrical terminal
Inventor: FITZPATRICK JOHN
IPC: H01R13/115
Filed: 1969-01-21
Abstract: 1,218,535. Two-part couplings. THOMAS & BETTS CORP. 21 Jan., 1969, No. 3269/69. Heading H2E. A female electrical contact 10 comprises a pyramidally shaped base, the apex 24 of the pyramid forming a detent 26, and longitudinally extending side-walls 30, 32 each of which is formed integrally with an inwardly extending rail, 34, 36. The pyramid is formed by four triangular members 16, 18, 20, 22 and the rails 34, 36 are preferably downwardly inclined at an acute angle to the side walls 30, 32. The front edge 16 of the contact 10 is bevelled, and the corners 38, 40 of the rails are rounded to facilitate the insertion of a male contact (Fig. 4, not shown), which is provided with an aperture (52) to engage the detent 26. Release is effected by applying force to the male contact  in such a way that the detent catch is released and the rails 34, 36 are forced upwards. The male contact is provided with lugs to limit its insertion in the female contact.
Patent GB-326301-A (GB)
Title: Improvements in pipe and like joints
IPC: F16L13/11
Filed: 1929-01-31
Abstract: 326,301. Heffer, B. Jan. 31, 1929. Spigot-and-socket and like overlap joints held by cement and the like.-The abutting ends of two pipes are provided with coacting annular recesses a and ribs b which are disposed so that the ribs will contact with the outer and inner walls x of the outer and inner recesses respectively to align the pipes and also form closures for jointing material d, such as cement, bitumen, &c., which is packed in the recesses and compressed by the ribs. Excess material is forced into a space c between the jointing surfaces intermediate of the closures, which space may, if desired, be completely filled by grouting poured through a hole e in the socket.
Patent GB-500396-A (GB)
Title: Improvements on devices for obtaining measured quantities of liquid
IPC: G01F11/32
Filed: 1938-02-03
Abstract: 500,396. Delivering measured quantities of liquids. BONNAUD, H. M. Feb. 3, 1938, No. 3315. [Class 106 (v)] A liquid-measuring device comprises a measuring chamber a formed by a glass cylinder. b mounted between a ring and a pourer e, and inlet and outlet valves l, h for the measuring chamber formed with telescoping sleeves 11, 12 enclosing a spring 10 normally maintaining the valves in the closed position. A rod 15 secured to the valve l extends through the valve h and carries a member 20 slidable in the pourer passage f. A spindle 17 extending across the passage f may be operated by a key &c. 16 to cause a detent 18 to engage a pin 21 on the member 20, a clockwise movement opening the valve l and an anticlockwise movement opening the valve h. A ball valve 26 resting on the pourer nozzle 25 and preventing dripping from the nozzle is lifted by the pin 21 when the valve h is opened. A passage i in the pourer allows air to pass to the measuring chamber to replace the escaping liquid. The upper part of the measuring chamber is fitted with a washer m to facilitate its attachment to an inverted bottle or other liquid container. The valves l, h may consist of rubber rings mounted on ebonite, porcelain, glass or like body members and the other parts with which the liquid comes into contact may be formed of synthetic resin or other non-matallic material.
Patent GB-1475066-A (GB)
Title: Record players
IPC: G11B17/16
Filed: 1974-04-22
Abstract: 1475066 Record changer GLENBURN REALIZATIONS Ltd 22 April 1974 [23 Jan 1973 6 April 1973] 3373/73 and 16498/73 Heading G5R A record changer centre spindle including three equi-angularly spaced slots 12 each with a record support arm 28 and record retaining finger 43, is retained in the centre socket of a turntable by rib engaging lugs 25a and operated to its record release position by downwardmovement of control rod 21 from which it is returned to its normal position by spring 26. The support arms 28 are retained by a resilient annular member 33 which is received in a circumferentially extending groove 20 formed in the control rod. The arms which are resiliently biassed outwards by the member 33 are moved inwards to release the lowermost record of a stack of records as cam surface 36 of the arm engages the lower edge 39 of the slot 12 as the control rod is lowered. The record retaining fingers 43 are supported by a part 50 of the spindle body between slots 12 and further slots 42 formed in line with the slots 12, which part engages in a notch 48 in each finger and the fingers are biassed inwards by resilient circlip 46 which engages a further notch 47 of the fingers. On downward movement of the control rod, ball 17 pivots the finger outwards to engage the lowest but one record of a stack.  The downward movement of the control rod is in two steps with a pause after the fingers 43 have engaged the lowest but one record and parts 30 of the arms 29 have moved slightly below the lowermost record level to allow the record time to leave the rest of the stack where it tends to be retained by suction effect. When the last record is released there is no restraint to outward movement of fingers 43 so that the control rod can move downwardly, Fig. 4 (not shown) to a greater extent thus providing a last record signal.
Patent GB-880322-A (GB)
Title: Improvements in or relating to electric circuit assemblies
IPC: H01R33/76
Filed: 1958-02-03
Abstract: 880,322. Electric circuit panels. TELEFUNKEN G.m.b.H. Feb. 3, 1958 [Feb. 2, 1957], No. 3410/58. Class 37. An electric circuit panel has conductors formed by printed circuit technique on a support and connections made to these conductors by a dip soldering process. One or more contacts are provided for connecting to circuit conductors which carry high voltages, or require screening, and which are not printed on the support. These contacts are so positioned as not to be connected to conductors during the dip soldering process. In the embodiment shown in Fig. 1, an electric circuit panel comprises an insulated support 1 provided on one side with a pattern of adhering conductors 2 and on the other side with components 3. A valve holder 5 is mounted in an aperture such that some of its terminals 8 which form the said contacts project on the side of the support on which the components are mounted, and the remaining terminals 6 project on the other side for connecting to the printed conductors during the dip soldering process. The non-printed conductors 9 are preferably screened and may be connected to the terminals 8 subsequent to the dip soldering process. An alternative method of mounting the valve holder is shown in Fig. 2 (not attached).
Patent GB-906085-A (GB)
Title: Power cut-off and braking mechanism for c.t.c. or like cutting machines
IPC: F16D65/28
Filed: 1960-02-01
Abstract: 906,085. Controllers. HOADLEY, L., and BRITANNIA ENGINEERING CO. Ltd. Aug. 5, 1960 [Feb. 1, 1959], No. 3522/60. Class 38 (3). [Also in Group XXIV] A device for braking and arresting a cutting machine after a belt striker or circuit-breaker mechanism has cut off the power comprises a hand-actuated rod 1 having a block 2 slidably mounted thereon and biased by a spring 4 towards a stop 3 on the rod. The block 2 either carries a pin 5 co-operating with a lever 6 actuating the belt striker fork 7 or, if the machine is electrically operated, actuates a circuit-breaker 8 by means of a trip 9. In either case when the rod 1 has been pulled to a point where either the belt has been moved on to the idler pulley 10 or the circuit has been broken, further pull on the rod causes the block 2 to abut a fixed stop 11, but the rod can continue to be moved until a lug 12 thereon engages a brake lever 13 to brake a driving pulley 15.
Patent GB-589372-A (GB)
Title: Improvements in building materials
IPC: C04B18/28
Filed: 1945-02-27
Abstract: A plastic composition comprises sawdust, impregnated with an aqueous solution of caustic alkali or alkali metal silicate and allowed to stand for some hours, the sawdust being then mixed with Portland cement and a small amount of ground gypsum, gauged with a solution of calcium chloride, and moulded to desired shape.  A mineral aggregate such as incinerator ash or the like may be added, and the mass may be employed with a metal reinforcement.  A roughened effect may be produced by distributing burnt sand or the like over the surface before setting.
Patent GB-833700-A (GB)
Title: Improvements in or relating to detachably interconnectable members
Inventor: TURNER LESLIE ASHTON STEELE
IPC: A44C11/00
Filed: 1957-02-01
Abstract: 833,700. Jewellery. EDMONDS, PACKER & TURNER (PATENTS & DESIGN) Ltd. Jan. 17, 1958 [Feb. 1, 1957], No. 3668/57. Class 43 [Also in Group XXV] A coupling member has a plurality of resilient arms 2 arranged in groups of two or more arms; the arms in each group interlock with a similar group of arms or a similar coupling member to detachably link the two coupling members together. The ends of the arms may have an enlargement in the form of a sphere 3 or double cone. The arms may extend from a body 1. The coupling members may be made from moulded synthetic plastic material. A pendant having one pair of arms may be connected to a coupling member.
Patent GB-1192294-A (GB)
Title: Improvements in or relating to Flexible Hoses
Inventor: OAKES ANTHONY PETER
IPC: F16L11/02
Filed: 1968-01-24
Abstract: 1,192,294. Flexible hoses. AUTOMOTIVE PRODUCTS CO. Ltd. 10 Jan., 1969 [24 Jan., 1968], No. 3695/68. Heading F2P. A hose comprises an inner tube of natural, or synthetic, rubber or plastics material, e.g. nylon or P.V.C., and one, or more, reinforcing layers formed by winding, or braiding, filaments or threads on to said inner tube, the filaments or threads consisting of strands of glass fibre twisted together and coated with an elastomerio polyurethane serving as a bonding agent which is adherent to the material of the inner tube. The bonding agent is applied as a coating to the reinforcement alternatively, the bonding agent may be employed to secure an outer protective sheath, the curing process being carried out after the hose has been assembled.
Patent GB-1156241-A (GB)
Title: A Device for Facilitating Axial Displacement of a Camshaft
IPC: F01L13/00
Filed: 1967-01-25
Abstract: 1,156,241. Cams. CKD PRAHA OBOROVY PODNIK. 25 Jan., 1967 [31 Jan., 1966], No. 3738/67. Heading F2K. A device facilitating the axial displacement of a cam-shaft 1 to bring an alternative set of cams into operation comprises a tappet including a lower portion 4 with a roller 5, and an upper portion 4<SP>1</SP> with a seat 7 to receive a valve push rod 3, both portions being slidable in a guide 6. A space 8 between the portions 4, 4<SP>1</SP> is normally pressurized from an oil supply line 9 having a non-return valve 10. An oil reservoir 22 is interconnected with the engine lubricating system 23 and with a pressure air cylinder 26. To allow axial movement of the cam-shaft, a lever 20 on a shaft 21 is rotated anti-clockwise to open a vent valve 12 for the space 8 and to lift the lower portion 4 of the tappet.
Patent GB-469987-A (GB)
Title: Improvements in and relating to towels
IPC: A47K10/02
Filed: 1937-02-09
Abstract: 469,987. Towels. BIEBER, A., and BARLOW & JONES, Ltd. Feb. 9, 1937, No. 3848. [Class 131] [Also in Group XVII] A towel is provided with an opening 2 formed near one end through which, when the towel has been rolled around a bathing dress, shoes, and other articles to be carried, one of a series of strips formed or provided in suitable positions near the opposite end is passed to serve as a handle 5.
Patent GB-229308-A (GB)
Title: Improvements in processes and apparatus for steam generation
IPC: F22B3/04
Filed: 1925-02-11
Abstract: 229,308. Marguerre, F. Feb. 11, 1924. [Convention date]. Generating by reduction of pressure. -In steam-generating apparatus wherein the supply of heat and evaporation proceed in separate elements as described in Specifications 12805/00 and 28099/13, the circulated water is automatically regulated in accordance with the increase or decrease of the heat supply. If the water circulation ceases, the heat supply may be interrupted by the automatic redease of a pawl which frees a pair of sliding dampers. The drawing shows an installation in which the water after leaving the heating element 3, passes through a throttle to an injector located within the vaporizer 2; in a modification, the throttling and injecting are effected together. The heating element may be subdivided and more than one vaporizer may be used; a part of the heating element may warm the feed-water.
Patent GB-1057764-A (GB)
Title: Tiltable crucible or converter
IPC: C21C5/46
Filed: 1964-01-29
Abstract: 1,057,764. Mounting tiltable crucibles or converters. VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A.G. Jan. 29, 1964 [Jan. 31, 1963], No. 3866/64. Heading F4B. A tiltable crucible or converter 1 is supported by pairs of brackets 3, 3<SP>1</SP> secured thereto, preferably with one pair in the tilting plane of the crucible and two further pairs in the plane perpendicular to the tilting plane. The crucible is positioned axially relative to the carrying ring 2 by the abutment of inclined bearing surfaces of wedges 4, 41. Since these surfaces define planes, each of which includes the geometric centre of the ring, the small clearance 6 occuring between one or other of said pairs of wedges in the upright or inverted positions of the crucible respectively remains constant throughout all stages of thermal expansion. The crucible and the carrying ring are fixed peripherally with respect to each other by stops 7, Fig. 2 (not shown), which have freedom of motion longitudinally of the crucible axis.
Patent GB-738315-A (GB)
Title: Improvements in or relating to valves
IPC: F16K3/10
Filed: 1953-02-11
Abstract: 738,315. Valves. GENERAL ELECTRIC CO., Ltd., and BOOKER, F. Jan. 28, 1954 [Feb. 11, 1953], No. 3872/53. Class 135. A swinging flap valve mounted on the wall of a tank for use with the radiator tubes of an oil-cooled electric transformer comprises a valve body 1, Figs. 1, 3, welded to an oil tank 2 and connected to the flanged end 5 of a radiator tube 6 by studs 4 and nuts 8. The body is recessed to receive an oil-resistant rubber ring 18 which coacts with a welded swinging flap structure consisting of a pear-shaped disc 19, a bar 20 pivotally mounted at one end on a clamping bolt 12 and slotted at its other end to engage between shoulders on another clamping bolt 11 when the valve is closed, and a reinforcing rib 23. The clamping bolts are screwthreaded for part of their length to engage complementary threads in the body 1 and have locking screws 29, 30 so that they may be locked in the valve-open position. An arm 24 fixed to the bolt 12 on unclamping of this bolt lifts the flap clear of the body and studs 26, 28 secured to the flap and body, locate the flap in its closed position and hold it from the body during rotation.
Patent GB-868319-A (GB)
Title: Improvements relating to rectifier circuit arrangements
Inventor: WALKER ALEC HERVEY BENNETT
IPC: H01J23/36
Filed: 1959-02-04
Abstract: 868,319. Rectifying. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Feb. 4, 1960 [Feb. 4, 1969], No. 3897/59. Class 38 (2). A rectifier arrangement for obtaining a variable power D.C. output from a polyphase source comprises a transformer with six-phase secondary windings S1, S2 connected through interphase reactor 10 to one side of load 11. Each secondary winding has a higher and lower voltage tap, each lower-voltage tap L being connected through a rectifier 13 to the other side 12 of load 11. The higher-voltage taps H are connected through controllable rectifiers 15a also to side 12 of the load. Controllable rectifiers 15a may be transistors or two- or three-electrode semi-conductor devices having a " breakover " voltage in one direction. Rectifiers 15a are made conducting at a predetermined instant in each appropriate phase by a pulse from generator 16, the triggering instant being variable as desired. At the beginning of a positive halfcycle in winding S1A rectifier 13 is conductive and load 11 is supplied from lower voltage tap L. When rectifier 15a is triggered the load is supplied from higher voltage tap H. At the end of the positive half-cycle rectifier 15a becomes non-conductive until it is triggered again. Blocking rectifiers may be employed.
Patent GB-940448-A (GB)
Title: Advancing mine-roof support system
IPC: E21D23/08
Filed: 1962-02-02
Abstract: 940,448. Self-advancing mine roof supports. W. EGGEMANN, and E. VON CAMPENHAUSEN, [trading as HERMANN SCHWARZ KOMM.-GES.]. Feb. 2, 1962 [Feb. 8, 1961; Aug. 29, 1961], No. 4017/62 Heading E1E. A self-advancing mine roof support system, Fig. 1, consists of two frames relatively advanced by jackactuated toggle links 11, 12, 13 which are pivotally connected to the base members 10a, 10b of the frames for movement into and out of a vertical or substantially vertical position. The frames carry side supports 25 and the trailing frame is provided with a pump 20, electric motor 19 and valve-control unit 21. Two slightly modified conventional frames, Fig. 6, may be advanced by a toggle-mechanism 33 consisting of two pivoted arms with a plunger therebetween as shown, the toggle mechanism being arranged to swing to either side of a normal central position and to be releasably held in a lateral angular displaced position in order to accommodate misalignments, see also Figs. 7, 8 and 9 (not shown).