baber/WOPTO huggingface dataset:
Patent GB-1037003-A (GB)
Title: Supplemental belt for use in paper making machine and method of making such belt
IPC: B65G15/42
Filed: 1964-05-21
Abstract: Single or multi-ply polymeric sheet material, examples of which are given in the form of a perforated endless belt is coated with silica to improve the frictional properties of the surface of the belt.  The belt material may be coated with colloidal silica and dried or with ground silica and the belt then heated to its softening point to cause the silica to adhere thereto or alternatively thermosetting resins may be used to cause the silica powder to adhere.ALSO:A perforated endless belt having at least a layer of polymeric sheet material is arranged to run between the wire of a Fourdrinier paper-making machine and moisture removing means such as suction boxes to reduce the frictional drag.  A belt 50, Fig. 1 (not shown), of polyethyleneterephthalate passes between the upper run 38 of the wire 20 and the tops 46 of suction boxes 45 being trained also about the couch roll 22.  The tops of the suction boxes may be formed of polished stainless steel.  In a modification (Fig. 4 not shown) the belt is trained about both the breast and couch rolls so that for the major part of the run it travels contiguously with the wire.  In both of these embodiments drive is transmitted through the perforated belt from the couch roll to the wire but in a further modification (Fig. 5 not shown) the belt transmits no drive and travels with the wire over a portion only of its upper run.  The perforations normally comprise from 10% to 50% of the area of the belt, may be of other shape than round and preferably lie in lines leaving uninterrupted paths of belt material both longitudinally and transversely.  The surface of the belt may be grooved or the belt enclosed to improve lateral drainage characteristics (Figs 10-13 not shown).  To improve adhesion between the perforated belt and the wire the belt may be coated on its outer surface with silica.  To obtain adequate strength a multi-ply construction may be used for the belt, while the belt may also be formed of a sheet of polymeric material laminated together with a woven fabric, a non-woven fabric or a foam layer, (see Division B5). Polymeric materials other than polyethylene terephthalate may be used for the belt including polyamides, polycarbonates, polyolefines, vinyl polymers and vinylidene polymers.
Patent GB-862126-A (GB)
Title: Adjustable pawl
Inventor: SCHIPPERS JOAH FREDERICK
IPC: B23Q16/04
Filed: 1958-07-02
Abstract: 862,126. Ratchet gearing. JAMES GORDON & CO. Ltd. July 28, 1959 [July 2, 1958], No. 21242/58. Class 80 (3). A driving or holding pawl for ratchet gearing comprises a ratchet tooth-engaging part 10 in the form of a circular flange which is adjustable along a threaded part of a rod 8 pivoted at 7 and locked by a set-screw 12. As shown, the pawl is a holding one and is biased by a spring 13 into engagement with the ratchet-wheel 1 which is stepped by pawl 2 actuated by a reciprocating air motor 4.
Patent GB-1338152-A (GB)
Title: Contact members
Inventor: ROTHKEGEL B
IPC: H01H1/02
Filed: 1971-04-19
Abstract: 1338152 Switch contacts SIEMENS AG 19 April 1971 [7 Feb 1970] 21248/71 Heading H1N A switch contact comprises two complementary sintered bodies 1, 2 held together by impregnating the composite body with another metal; the first body 1 forms the contact surface and is resistant to arcing and welding while the other forms a base and solderable and highly conductive. Suitable materials are tungsten, molybdenum or rhenium for the first body; iron, nickel, cobalt or steel for the second. The whole is impregnated with copper up to around 40% of the total volume. Various particular compositions are described. Several shapes of contacts are also described. That shown in Fig. 5 is one of a group forming a contact; another (Fig. 3, not shown) has bores formed during the sintering to allow for fluid blast.
Patent GB-866909-A (GB)
Title: Improvements in injection devices including a reciprocating piston injection pump
IPC: F02M59/32
Filed: 1957-07-05
Abstract: 866,909. Fuel injection pumps. BESSIERE, P.E. July 5, 1957 [Aug. 14, 1956], No. 21305/57. Class 102(1). A fuel injection pump comprises a piston 2 which delivers fuel from the pumping chamber 1 through conduit 5, throttle 6, which may contain an adjustable needle valve, to a chamber 9 and fuel is injected through a spring loaded valve 7 which leads to the engine cylinder. A piston member 11 in the chamber 9 begins to move at approximately the same time that the pump piston delivers fuel through the conduit 5 under the pressure difference between either side of the throttle against a spring 12 to open a by-pass conduit 10 to vary the quantity of fuel injected, the conduit 10 being spaced from the rest position of the piston 11 and the time taken for the piston 11 to uncover the conduit 10 varies with the speed of the pump piston 2. The piston 11 may contain a passage 15 which cooperates with a conduit 14 when the by-pass 10 is uncovered to by-pass fuel upstream of the throttle 6. In a modified form the position of rest of the piston 11 may be such that this piston closes the conduit 5 from the pumping chamber 1. A spring loaded non-return valve may be placed in the conduit 5, the loading of the spring being such as to prevent liquid being sucked into the chamber 9 from the pumping chamber 1 as the piston 11 moves downwards. The chamber 9 may be placed in the supply pipe to the engine cylinders downstream of a timing device described in Specification 861,753 and the outlet from the chamber 9 may lead to a rotary distributer driven by the pump driving shaft when the pump is arranged to deliver to several engine cylinders.
Patent GB-796161-A (GB)
Title: Improvements in or relating to vibratory conveyors, screens or the like apparatus
Inventor: SHERWEN JOSEPH WILLIAM
IPC: B65G27/00
Filed: 1955-07-22
Abstract: 796,161. Sifting apparatus. GENERAL ELECTRIC CO., Ltd. July 20, 1956 [July 22, 1955], No. 21328/55. Class 117 [Also in Group XXX] The vibratory screen 1 is connected to the supporting framework 6 by (1) leaf type springs 3 inclined at an angle to the length of the screen and (2) helical springs 4, 5 acting generally parallel to the length of the screen. The adjacent ends of each pair of springs 4, 5 bear against cross-members 2 attached to the underside of the screen and the other ends bear against the framework, preferably through caps 7 adjustably mounted on threaded fittings. The framework, which is preferably substantially heavier than the screen, is supported by resilient suspensions 9. An electromagnetic vibrator 8 is mounted on one of the members 2. In a modification, Fig. 3, the leaf springs 3 are divided into two sets inclined at supplementary angles to the length of the screen. These springs are secured at their lower ends to a member 2 and fixed at their upper ends to the free ends of cantilever springs 10. The other end of each spring 10 is fixed to the framework. The free end of either spring may be locked to the framework by moving a wedge 11 by means of a pivoted member 13 and an arm 12 in order to rexerse the direction of conveyance.
Patent GB-293218-A (GB)
Title: Improvements in or relating to display stands
IPC: A47F7/18
Filed: 1927-08-13
Abstract: 293,218. Allan, J. E., and Leeds Brass Finishing Co., Ltd. Aug. 13, 1927. Stands.-In tailors' display stands for supporting flat boards carrying cloth in the piece, an inclined board-supporting member 2 mounted on a base affords a panel or border effect to the cloth. The base comprises angular side brackets 1 connected together at the rear by a bar 3. The member 2 is in the form of a rectangular frame which may be telescopic. The top bar 6 of the frame may have a rounded upper edge, or be a round rod, and may be located below the top of the side edges which may be recessed just above the bar 6 to accomodate the cloth without creasing. Spring clips &c. 4 on a cross-bar 5 grip the free ends of the cloth.
Patent GB-891890-A (GB)
Title: Pulsator for milking machines
IPC: A01J5/10
Filed: 1958-07-03
Abstract: A pneumatic pulsator for a milking machine, preferably having two or four pistons reciprocating in cylinders which control two slide valves for the distribution of atmospheric or reduced pressure to the teat-cup assembly, varies the relative time of compression and expansion of the teats by subjecting at least one piston to a different driving force to that of the other pistons. This may be accomplished if any one of four ways each of which is described in detail namely (i) by having one piston of a different size to the other pistons, (ii) by providing a spring to resist the motion of one of the pistons, (iii) by the controlled admission of air to a cylinder through a calibrated orifice in the cylinder wall and (iv) by the controlled admission of air into a cylinder by an orifice in the piston.  The invention is also applicable to diaphragm operated pulsators.  Specification 655,239 is referred to.
Patent GB-315421-A (GB)
Title: Improvements in and relating to ice-making apparatus
IPC: F25C1/12
Filed: 1929-07-12
Abstract: 315,421. Field, C. July 14, 1928. [Convention date]. Solidifying films.-In ice-making apparatus in which a film of ice is formed upon an internallycooled rotary cylinder 46, Fig. 5, mounted in a tank of water and detached therefrom by the deformation of the cylinder, the cylinder is formed of flexible metal sheets 54, connected by circumferential strips 56 of rubberized fabric, and ends 44 insulated with layers 294 of sponge rubber and bound by wire 62 to rubberized fabric aprons 60 connected to the cylinder. The cylinder is mounted upon trunnions 40 engaging slots in the end walls of the tank and rotated through chaingearing 68, Fig. 4, from a countershaft 80 which is rotated through chain-gearing 83 from a shaft 88 driven through worm-gearing from the motor M. The cooling medium, e.g. brine, is forced by a centrifugal pump 104, also driven from the motor M, from an inlet 142 through the pipes 144, 150, the latter of which contains a filter, and the hollow radial arms 170 secured to the fixed pipe 110 passing through the apparatus to the distributing-troughs 180 with perforate covers through which it issues as a spray on to the insides of the cylinder. From the cylinder the brine flows through the openings 198 in the pipe 110 and the pipe 200 to be re-cooled before returning to the pump inlet 142. The ice flakes float on the water in the tank and are conveyed up a drain sump 332 to a discharge chute 334 by blades 332 carried by spaced endless travelling chains 320. Ice is removed from the cylinder ends by scrapers 304, 306, Fig. 7, secured to the trunnion gland 50. The Specification as open to inspection under Sect. 91 (3) (a) comprises also cylinder deforming mechanism as set forth in Specification 334,494. This subject-matter does not appear in the Specification as accepted.
Patent GB-321150-A (GB)
Title: Improvements in or relating to bifocal and like spectacle lenses
IPC: G02C7/06
Filed: 1928-07-25
Abstract: 321,150. Reid, R. C. July 25, 1928. Spectacle lenses.-The imbalance produced between the eyes when using the reading portion of solid bifocal lenses of unequal power is corrected by providing a reading portion 1 the axis of generation of which is not parallel with the axis of generation of the surface of the distance or major lens 2. The surface of the reading portion is at some part or parts of its perimeter coincident or flush with the surface of the distance portion of the lens. The reading portion 1<a> 1<b> may be, except for one part entirely above or entirely below, the distance portion. In manufacture the reading portion 1, Fig. 10, is ground on the centre of a blank 2 which is tilted as shown, with respect to the axis of generation, and the lens for use is cut out of the blank eccentrically according to the direction in which it is desired to correct imbalance or lack of convergence.
Patent GB-223186-A (GB)
Title: Improvements in haulage clips for cable haulage systems
IPC: B61B12/12
Filed: 1924-09-12
Abstract: 223,186. Lane, F. Sept. 12, 1924. Rope grips.-In a screw-operated sliding-jaw rope grip having a removable nut such as 3, the nut and the adjacent part of the fixed framework are provided with registering 'projections and recesses to lock the nut while the movable jaw is being operated. Thus the nut may be provided with bevelled surfaces 2<a> at the sides or similar surfaces 2<b> at the top. Numerous modifications are described of which Figs. 6 and 8 are examples, showing recesses 6<a> and projections 8<a> respectively.
Patent GB-1434533-A (GB)
Title: Method and apparatus for deforming the section of a workpiece
IPC: B21C3/08
Filed: 1972-05-09
Abstract: 1434533 Drawing NATIONAL RESEARCH DEVELOPMENT CORP 8 May 1973 [9 May 1972] 21614/72 Heading B3P In a method of deforming a workpiece 1 by forcing it through a die 4, the workpiece 1 and the die 4 are jointly set into resonant radial vibration. In one embodiment, the workpiece 1 is drawn through a die 4 formed by a flexible metal torus 6 supported in a backing member 5. The torus 6 is filled from a source 10 with hydraulic fluid 7 which is pulsated during drawing by a device 9 to cause the surface of the die orifice to vibrate in a direction 11. In another embodiment (Fig. 2, not shown) a conventional die is mounted in a central hole (13) of a tapered disc resonator (12) having threaded bores (14) for receiving magnetostrictive transducers. The resonator (12) is bolted to a support of the drawing machine by lugs (15). The die is vibrated such that a stress node occurs at the resonator periphery and a stress antinode occurs at the die axis, the adjacent node being removed from the die-workpiece interface. The workpiece may comprise a tube which is drawn with or without an internal plug.
Patent GB-433005-A (GB)
Title: Method for sterilizing liquids, especially milk
IPC: A23L3/32
Filed: 1934-07-24
Abstract: 433,005. Sterilization of liquids by electrical treatment. FEREMUTSCH, P., 23, Moosstrasse, and VIELI, O., 4, Physikstrasse, both in Zurich, Switzerland. July 24, 1934, No. 21621. Convention date, July 24, 1933. [Class 41] Milk or other liquid is sterilized by passage in a thin film between electrodes of oligodynamic metal such as silver or copper, one of the electrodes being rotated or otherwise moved to promote stirring of the liquid. In the apparatus shown, milk saturated with carbon dioxide under pressure enters the cell at 23 and passes between a conical electrode 2 mounted on a shaft 7 and an electrode 1 constituting the inner lining of an insulating casing 8 the milk leaving the cell at 24. The electrode 1 is connected through an endplate 5 to a terminal 3 and the electrode 1 through an end-plate 6 and the shaft 7 to a terminal 4. The electrode-gap is adjustable by a screw-cap 18 mounted in a groove on the shaft 7 and engaging an extension 16 of the casing. The electrodes may be covered with thin sheets 28 of microporous nickel or other metal to retain slime detached therefrom. The electrodes may be provided with interlocking annular corrugations or flanges. They may be made from a sintered mixture of metallic powders. In modifications, the electrodes may consist of reciprocating plates or rotating discs, or a set of more than two coaxial electrodes may be provided. A periodically reversing direct current is preferably employed, the period between reversals being less than that taken for the metallic ion to pass from one electrode to the other.
Patent GB-320163-A (GB)
Title: Improvements in apparatus for indicating liquid levels
IPC: G01F23/16
Filed: 1928-07-25
Abstract: 320,163. Parr, G. W. July 25, 1928. Indicators actuated by pressure of head of liquid. - In apparatus for indicating the level in the fuel tank of a motor vehicle, by means of the pressure in an air pipe dipping into the liquid, the dipping pipe 1 surrounds a pipe 7 through which air is pumped to maintain the piping full of air. The pump comprises a flexible diaphrgam 3 carrying a weight 4 which is vibrated by the movement of the vehicle. Air is drawn in through valve 5 and delivered through valve 6 to the pipe 7. The lower end of the pipe 1 may be cut off at an angle, and a hand operated pump may also be employed for supplying air when the vehicle is at rest.
Patent GB-1109035-A (GB)
Title: Adjustable handle mounting
IPC: E05B65/16
Filed: 1966-05-16
Abstract: 1,109,035. Clamps; door fastenings; multiple fastenings. W. H. MINER, Inc. 16 May, 1966 [4 Aug., 1965], No. 21640/66. Headings E2A and E2B. An adjustable handle mount 10 for a rotary bar 14 of a door fastener comprises a U-sbaped member 11 adapted to embrace one side of the bar 14, a cam member 18 pivotally mounted on the U-shaped member 11 and adapted to be rotated into gripping engagement with the opposite side of the bar 14, and a handle 19 pivotally mounted on the U-shaped member 11 for pivoting the cam member 18 into gripping engagement with the bar 14 and then for rotating the bar to actuate the door fastener. As shown, the cam member 18 comprises a pair of plates 22 having cam faces 24 and connected by a lower brace member 28 which is adapted to be engaged by the handle 19 when the latter is pivoted downwardly from the position shown to engage the cam faces 24 with the bar 14. Another brace member 30 inter-connects the opposite edges of the plates 22 for engagement by the handle 19 when the latter is pivoted upwardly to release the mount from the bar 14, After the cam member has been engaged with the bar, the cam member and bar are then rotatable by the handle to actuate the fastener, comprising the ends of the bar, into engagement with keepers (not shown) and to bring the handle into engagement with a seal plate (not shown) carried by the door. In another arrangement, Figs. 5 and 6 (not shown) the cam member comprises two series of plates, the plates of each series being of different lengths and provided with arcuate cam edges whereby to engage the bar over a greater portion of it length and periphery.
Patent GB-815539-A (GB)
Title: Improvements in or relating to voltage measuring circuits
Inventor: DEIGHTON MICHAEL OLIVER
IPC: G01R19/04
Filed: 1956-07-13
Abstract: 815,539. Voltage measurement. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 5, 1957 [July 13, 1956], No. 21662/56. Class 37. A peak voltage measuring circuit in which a condenser is charged to correspond to the peak value comprises an amplifier having a feedback connection, the increasing voltage pulse causing the condenser to be charged and the feedback to be negative while the decreasing voltage pulse initiates switching means to reverse the feedback to positive and discharge the condenser for measurement purposes. In the embodiment shown, the amplifier comprises a " long-tailed pair " C1, C2 in series with a D.C.-coupled secondary emission pentode V3, the feedback being from the dynode of V3 to the grid of V2. The charging operation is as follows: a pulse is applied to the input of V1 and V3 conducts (its anode being held at normal potential) causing dynode current to flow round the feedback loop which is applied to the control grid of V2 as a negative feedback, the current also charging condensers C2, C3 the voltage on C2 closely following the rising potential on the grid of V1. On the trailing edge of the pulse, V1 cuts off, bringing V2 into full conduction and causing a drop in potential at the anode of V2 thus causing V3 to cut off leaving the peak voltage stored on C2, the anode voltage of V1 rising (owing to no input signal) and serving to trigger the measuring process. The rising anode voltage of V1 triggers the anode switching circuit to drop the anode voltage of C3 sufficiently so that the dynode now acts as the anode causing current to flow in the opposite direction in the feedback loop and provide positive feedback to the amplifier. This positive feedback also initiates the discharge of condenser C3 (in series with C2) and of larger value to enable measurement to be made more easily. The voltage on C2 is reduced in steps, as shown, by a sequence of short current pulses applied to C3 by the capacitor discharging circuit, the number of steps before the circuit triggers being a measure of input pulse amplitude. C3 may, alternatively, be discharged linearly, the pulses of an oscillator which is started and stopped at the beginning of the linear discharge and when the circuit triggers, being counted. The triggering action may be made more positive by superimposing a square wave on the step waveform so that triggering can only take place during period t2 (Fig. 3).
Patent GB-394501-A (GB)
Title: Improvements in or relating to spigot and socket joints for internally coated metal pipes
IPC: F16L13/12
Filed: 1932-08-02
Abstract: 394,501. Pipe joints. SHEVLIN, J. T., 15, South Street, London.-(Mannesmannrohren-Werke ; 1B, Berger Ufer, Dusseldorf, Germany.) Aug. 2, 1932, No. 21699. [Class 99 (i).] In a spigot- and-socket joint for lined pipes a packing-ring d is inserted between the ends of the linings c, the lining of the pipe e extending into the socket where its thickness is equal to the width of the ring which contacts with the socket. The joint is completed by hemp b and lead a, or the pipes may be welded together.
Patent GB-594303-A (GB)
Title: Improvements in and relating to alarm and control apparatus in connection with levelof liquids in tanks and boilers
IPC: G01F23/32
Filed: 1944-11-06
Abstract: 594,303. Indicating liquid-levels. STOKOE, C. L. Nov. 6, 1944, Nos. 21725/44 and 22582/45. [Class 123 (i)] [Also in Group XXXVII] Apparatus for indicating rise and fall of liquid-level in a tank, boiler &c. comprises a float a which is located within the tank or, as shown, in a chamber c connected to said tank by pipes d, e, and is mounted by a rod b on a transverse rotatable spindle i, l the end l of which projects into a switch box k<1>, bolted to the chamber c, and is provided with opposed tappets o, p. The switch box k<1> is fitted with two switches each consisting of a long member q or r with a fixed silver contact x and a short member t, u having an adjustable contact y, these members being fixed to bases s which are removably secured by studs v to the insulated bottom w of said box and are connected to pairs of terminals 1, 2 and 3, 4. In the arrangement shown in Fig. 3, only the lower tappet o is operative and, upon rise or fall of the float, this tappet will turn clockwise or anti-clockwise respectively to close the switch r, u and open the switch q, t, the switch q, t controlling a safety (white) lamp and the switch r, u a danger (red) lamp and, also, an alarm. In an alternative arrangement, the switch members q, t, say, are reversed in such a manner that this switch is opened and closed by the upper tappet p simultaneously with the opening and closing of the switch r, u by the tappet o, one switch controlling a motor-driven liquid feed pump and the other an indicating lamp. The switch box k<1> is also provided with a continuously lighted lamp c, located behind an eccentric window d<1> in the cover thereof, and the boss of the tappets o, p is formed with an upstanding arm a' having a red glass attachment b<1> at its upper end which is adapted to move over the inner side of the window d<1> to indicate change in position of the float a; the arm a<1> is also fitted with a pointer o<1> which projects through a slot in the switch box cover and moves over a calibrated liquiddepth indicating dial p'. Limitation of movement of the float for protecting the switches is effected by providing a boss j' on the spindle i, l with bronze &c. strips h<1> and the wall of the chamber c with coacting stops g'. Specifications 327,515, [Class 123 (i)] and 559,915, [Group XXIX], are referred to.