baber/WOPTO huggingface dataset:
Patent GB-922881-A (GB)
Title: Improvements in variable resistors
Inventor: HARDISON WILBUR THORPE
IPC: H01C10/40
Filed: 1959-04-20
Abstract: 922,881. Variable resistors. BOURNS Inc., and M. E. BOURNS. April 20, 1959, No. 13355/59. Class 37. In a variable resistor which includes a rotating lead screw, a linear resistance element arranged parallel with the lead screw and a slider movable by the lead screw along the element, the slider comprises oppositely indined interconnecting spring portions, each encircling the lead screw, and spring pressed into driving engagement with it, the inclined portions being yieldable under excessive pressure to ride over the thread if the lead screw is turned when the slider is prevented from moving. In one embodiment, Figs. 2, 3, a twopart casing 11 of for example phenolic resin material has mounted within it a conductive member 14 and a cylinder 15 of insulating material having a resistive film 16, both being held in position by the ledges 17. Electrical connections to the member and cylinder are made by means of the resilient contacts 20 which project through the casing walls. A lead screw 24 extends through the casing and is retained within the semicircular depressions 25 by insulated caps 28 in which are provided screwdriver slots 28 for adjustment of the potentiometer. A contact member 30 formed by stamping, is bent to have sides 31 and 32 which are apertured to take the lead screw, the shape of the apertures being such that when the sides 31 and 32 are pressed together the lead screw may be easily inserted, and when they are released the top and bottom edges of the openings engage with the screw thread. The side 32 has a portion 36 which is in contact with the resistive coating and a further part 38 is bent to engage with the member 14. The two parts of the casing may be held together by rivets 12 or by adhesive. In a second embodiment (Figs. 4, 5, not shown) the member 14 is replaced by a cylinder with a resistive coating and the resistive element by a moulded piece of resistive material, the casing being divided in a plane perpendicular to that of the first embodiment. In a third form (Figs. 6, 7, not shown) the contact to the slider is obtained through the lead screw and the case is provided with a transparent cover, a projection from it engaging with the lead screw to retain it in position. In a fourth form (Figs. 8, 9) the resistive element includes a generally oval cross-section body 118 of insulating material around which are wound a number of turns 119 of resistive wire, connected at one end to a larger group of turns 120 thus forming a large resistance value coupled to a fine adjustment. The element is held in position by means of spring clips 121 positioned in the housing at opposite ends to make contact with a portion of the winding. A lid 111 of the housing has a conductive metal layer 112 secured to it to provide the connection between the grouping contact and the terminal 125.
Patent GB-300469-A (GB)
Title: Improvements in calendering machines
IPC: D06C15/00
Filed: 1928-05-07
Abstract: 300,469. Hunt & Moscrop, Ltd., Frazer & Haughton, Ltd., Haughton, J. W., Frazer, S. J., and Boardman, J. May 7, 1928. Calendering. - A calender, more particularly for short cloths, has one cotton bowl A of large diameter and two smaller heated metal bowls B, D arranged near together, the bowl being frictionally driven from the bowl A at the same peripheral speed and the bowl D being driven also from the bowl A by gearing at a greater peripheral speed. The bearings for the bowls B, D slide on the inclined members E<1>, E<2> of the frame under the control of loading weights W.
Patent GB-133662-A (GB)
IPC: F21L13/08
Abstract: 133,662. Burri, J. Oct. 8, 1918, [Convention date]. No Patent granted (Sealing fee not paid). Dynamo lamps.-The field magnet 21 is rotatable and is supported by a frame 22 enclosing the driving mechanism between its side members. The frame is placed in the casing 1 by a sliding movement, the casing being sufficiently flexible to allow of the passage of the spindles 10, 17 which finally engage in holes in the casing and hold the frame 22 in position. The driving-mechanism comprises a spring- controlled lever 6 carrying a rack 7 which engages a loose pinion 8 bearing a pawl 13 engaging a toothed wheel 12 keyed to the shaft 10. Loosely mounted on the shaft 10 is a drum 11 containing a spring fastened at one end to the drum and at the other to the shaft. A wheel 11<a> secured to the drum 11 actuates gearing to rotate the magnet 21. Reference has been directed by the Comptroller to Specification 17752/12.
Patent GB-1455586-A (GB)
Title: Conveyor handrail
IPC: B66B23/24
Filed: 1973-03-20
Abstract: 1455586 Passenger conveyers DUNLOP Ltd 13 March 1974 [20 March 1973] 13426/73 Heading B8A A handrail for mounting alongside the variable speed zone 2 of a passenger conveyer comprises two constant speed handrail runs 6, 7 arranged in series and driven at different speeds. The runs 6, 7 overlap. Further runs 5, 8 may be provided adjacent low and high speed zones 1, 3 of the conveyer.
Patent GB-498920-A (GB)
Title: Industrial rotary work table
IPC: B25H1/00
Filed: 1937-05-11
Abstract: 498,920. Work benches. DELAHUNT, E. N., and CRANE, Ltd. May 11, 1937, No. 13439. [Class 61 (ii)] [Also in Group XXII] An intermittently rotated work-table 25 has a plurality of arms 15 ... 18 each provided with a support 21 adapted to receive a work piece. The table is lowered each time it is arrested so that the supports 21 rest on bases 23 while the workman, at such base, performs the desired operation on the workpiece by tool or machine or in some cases power-operated machines alone may be used. The rotating, lowering, locking, and raising of the table may be done by hand or by electrical, hydraulic, mechanical, or other means. A conveyer may be used to deliver workpieces to and from the table.
Patent GB-184280-A (GB)
Title: A new or improved device or apparatus for recording and checking telephone calls
IPC: H04M15/28
Filed: 1921-05-12
Abstract: 184,280. Sutherland, W. G., Sutherland, J. G., Cooke, C. W., Copeland, J. E., and Rogers, W. May 12, 1921. Memorandum appliances.-A substation device for recording outgoing telephone calls comprises an electromagnet which responds to a momentary increased current in the line to close the circuit of an electric motor which, by means of a train of gearing, operates a counter, moves forward a paper strip and, after these operations have been performed, breaks its own circuit. Fig. 3 shows a plan view of the apparatus. The electromagnet 1 connected across the line responds to an increased current when a call is established, and a pawl 3 attached to its armature 2 steps forward a toothed wheel. A quickstart worm 6 on the shaft 5 of the toothed wheel causes a flanged wheel 7 to close a contact 9 in the circuit of a motor 10, which is also connected across the line and operates under the normal voltage. The motor drives the shaft 13 which (1) through worms 14, 15 operates a counter 16, (2) through worms 17, 18 and wheels 21, 22 rotates rollers 20 between which is fed forward a paper strip on which notes of the call may be made, and (3) through the wheel 22 rotates the flanged wheel 7 on the worm 6 until the motor circuit is broken at the contact 9.
Patent GB-866718-A (GB)
Title: Method of preparing complex compounds of metals with organic acids
IPC: C07C59/265
Filed: 1957-04-29
Abstract: Complex compounds of metals capable of forming oxides having amphoteric or acid properties are made by treating an oxide, hydroxide or an oxide hydrate of, or a salt of a volatile acid with, such a metal, with a solution of a di- or poly-basic organic complex-forming acid until at least one of the reactants is consumed, allowing the complex formation to reach completion, separating any excess reactant and, if desired, isolating the matured complex compounds.  After consumption of one of the reactants a further amount of the consumed reactant may be added and complex formation allowed to reach completion, preferably until a highly viscous mass is formed.  The organic acid may be, for example, oxalic, citric or tartaric.  Suitable metals whose complexes are formed are aluminium, beryllium, zirconium, hafnium, germanium, niobium, tantalum, chromium, molybdenum, tungsten, uranium and iron.  To shorten the overall time of treatment the main quantities of organic acid may be neutralised by digesting with industrial oxide hydrates of the metal, or with salts of the metal with a volatile acid until the volatile acid has been considerably vaporised.  The following compounds are novel: Aluminium oxalic acid complex H6[Al2(C2O4)6],3H2O; uranyl oxalic acid complex H4[UO2(C2O4) 3] ,3H2O; niobium-oxalic acid complex H5[Nb(C2O4)5],nH2O; tantalum-oxali acid complex H5[Ta(C2O4)5],nH2O; tantalum-oxalic acid complex H7[Ta(C2O4)6],nH2O; chromium-oxalic acid complex H6[Cr2(C2O4)6],nH2O; molybdenum-oxalic acid complex H2[Mo2 (C2O4)]n,H2O; tungsten-oxalic acid complex H2[W2(C2O4)],nH2O; beryllium-oxali acid complex H2[Be2(C2O4)3],nH2O; germaniumoxalic acid complex H2[Ge(C2O4)3],nH2O; and iron-oxalic acid complex H3[Fe(C2O4)3],nH2O.  Specification 866,714 and 866,717 are referred to.
Patent GB-231701-A (GB)
Title: Improvements in machines for grinding and pulverising friable substances
IPC: B02C17/00
Filed: 1924-06-04
Abstract: 231,701. Gelder, J. P. van. June 4, 1924. Impact pulverizers; ball and like mills.- Apparatus for grinding and pulverizing friable substances comprises a slowly-rotating horizontal drum like chamber 18, Figs. 1 and 2, with anvilbars 14 supported at their ends in the heads of the chamber and containing beaters 13 mounted on a rapidly-rotating horizontal shaft 10, loose steel or silica balls 36 being placed in the annular chamber surrounding the bars 14 to crush the material that falls between the bars, the material being fed through an aperture in one head of the chamber and delivered through an aperture in the other head, with means for creating a draught of air through the chamber to remove the fine material. The drum is lined with detachable end and peripheral plates 16, 17, and a gear-ring 19 on the cheek 20 meshes with a compound spur-gear 37 driven by a pinion 39 on a shaft 40 which may be driven by a belt from the beater-shaft 10. The space between the perforated section head-plates 21 and the cheek 20 is subdivided by radial ribs to form pockets 22. A bearing collar or flange 27 on the cheek 20 rides on trunnion rollers 28 supported in frames 29. Openings 50 surrounding the collar 27 lead from the pockets 22 to the beaterchamber of the mill to allow granular material which passes through the perforations in the plates 21 to return to the beater-chamber. The outlet sleeve 31 in the, delivery head of the mill is loosely spigotted into the suction opening 33 of a blower 34, the delivery mouth 35 of which is connected by a pipe to a cyclone or other separator. When a blower is not used, the peripheral plates 44, Fig. 3, of the mill are perforated to register with perforations 43 in the belt plates 45 of the shell 18, and a screen belt 46 of wire gauze &c. peripherally encloses the mill body. The particles that pass through the perforations 42 of the plates 44 but are too large to pass the perforations of the screen 46 return to the mill through the perforations 43 at the top to be re-ground by the balls 36. The fine particles that pass through the screen 46 are collected in a casing 47 provided with a delivery spout.
Patent GB-670191-A (GB)
Title: Improvements in or relating to butane cylinder covers
IPC: F16K35/10
Filed: 1949-05-23
Abstract: 670,191. Storing gases. STANLEY, C. Dec. 17, 1949 [May 23, 1949], No. 13642/49. Class 8 (ii) The regulator E and valve F of a butane gas cylinder are protected by a cover A, and this cover is secured by a bar B passing under the union D and through oppositely aligned slots S in the cover. In use a chain C having one end secured to one end of the bar B passes through a fixed object and is locked to the other end of the bar.
Patent GB-263028-A (GB)
Title: A new or improved composition prepared from bitumen and rubber
IPC: C08L7/00
Filed: 1926-05-29
Abstract: 263,028. Campbell, J. May 29, 1926. Plastic compositions containing indiarubber and bitumen.-A composition suitable for spraying roads, for protecting iron, wood &c. and as a roofing material is prepared by boiling together until thoroughly mixed 70 parts of rubber and 30 parts of bitumen. The properties of the composition may be varied by incorporating therewith small proportions of pitch, resin, sulphur, rubber solvent or solution, plaster of Paris, and fibrous material.
Patent GB-1259917-A (GB)
Title: Frames formed from metal sections, in particular for windows and doors and the method of their production
Inventor: SCHENNING THEODOR KARL PETER
IPC: E06B3/976
Filed: 1970-03-20
Abstract: 1,259,917. Corner joints for frames. T. K. P. SCHENNING. 20 March, 1970 [21 March, 1969], No. 13669/70. Heading E1J. A corner joint is formed in a hollow metal window or door frame by inserting a corner angle piece 6 in the ends of frame members 2 and 4, the angle piece having transverse V- shaped notches 10 on the outer surface of each arm, and by forming V-shaped depressions 14 in the frame member walls to engage in the notches 10, at least the side face of each depression 14 further from the corner being inclined at the same angle as the corresponding notch side face 12, and the point of pressing of each depression 14 being displaced slightly relative to the notch 10 away from the corner. The pressing operation is carried out using a jig comprising a rectangular abutment, against which the inner surface of the assembled frame corner rests, and punches 16 arranged to press all the depressions 14 simultaneously and having their axes displaced from the axes 18 of the notches 10 by a distance x=1 to 2 mm. The pressure of the depression 14 on the notch side face 12 tends to shift the angle piece slightly further into the frame members 2 and 4, i.e. the mitred ends of the frame members are forced firmly together.
Patent GB-1530875-A (GB)
Title: Sewing machine
IPC: D05B47/02
Filed: 1977-03-31
Abstract: 1530875 Needle bar drive WESTERN STAMPING CORP 31 March 1977 [15 Nov 1976] 13682/77 Addition to 1481368 Heading D1G A sewing machine with an axially reciprocable needle bar 82A has a first order lever 80A on a fulcrum 84A and which with one end engages the needle bar and with the other engages a crank 75A by which it is driven, the arm 81 of the lever being flexible to follow the cranks movement. The remainder of the machine is as described in Parent Specification, except for the pivot of the sewing hook which cooperates with the sewing needle. This pivot is shown in Fig. 35 and has a slotted cupped head 158 which acts as a Belleville spring to hold the pivot tight. Specifications 1481366; 1481367; and 1481369 are also referred to
Patent GB-478347-A (GB)
Title: Improvements in or relating to valves for controlling the flow of liquids to bottles and other receptacles
IPC: B67C3/26
Filed: 1936-05-14
Abstract: 478,347. Valves. CHERRY-BURRELL, Ltd., and RODGERS, F. May 14, 1936, No. 13712. [Class 135] [Also in Group XVII] A valve device for filling bottles or other receptacles from a liquid supply tank 6 comprising a sleeve 30 biassed for sliding movement on a liquid supply pipe 8 connected to the tank, a sealing member 31 for the mouth of the receptacle to be filled, carried by the sleeve 30, and a vent tube 22 carrying a seating 33 for the sleeve, has the vent tube biassed for movement in the opposite direction to that of the sleeve 30 by means of a spring 20 of flat strip form. When the receptacle is applied to the sealing member, the sleeve and the vent tube at first ascend together and the latter moves away from a fixed closing member 35, further movement of the receptacle opening the liquid passage between the sleeve and the vent tube. In the filling operation therefore, the vent tube is opened first and closed last, but is always closed before the seal between the member 31 and the bottle is broken so that overflowing of liquid is avoided. As shown, the vent tube is guided by a fixed tube 16 supported in a socket 15 by arms 14 on the pipe 8, the latter being clamped to the base of the tank by a nut 10. The closure member 35 has a stem 22 detachably secured to one of the bifurcated ends of the U-shaped blade spring 20 by a spool head 24, the other end 18 of the spring passing through slots 17 which limit its movement and engaging a similar spool head 27 on the vent tube. A rivet or other projection detachably secures the spring end 25 to the tube 16. A spring 42 urges the sleeve 30 against the seating 33. The sealing member 31 which is of rubber or the like has an overhanging skirt 38 and a conical surface 39 which may have a series of flat or concave areas to facilitate breaking of the seal. The vent tube is guided in the sleeve 30 by projections 36, 37 of which the former is elongated in the axial direction whilst the latter is of triangular form to divide the liquid flow, especially in the case of viscous liquids, and so provide a clear passage for the air to be vented. The tube 16 has ports 21 above the maximum level of liquid. The tank may have more than one valve device.
Patent GB-290976-A (GB)
Title: Improvements relating to cooling drums
IPC: F28F5/02
Filed: 1928-05-09
Abstract: 290,976. Schroder, W. G. May 21, 1927, [Convention date]. Rollers, hollow.-Rods h having collars &c. h<1> are disposed in the annular space between the inner and outer cylinders of a rotary cooling drum to direct cooling brine against the outer cylinder. In a modification, a network is secured around the inner cylinder, while in another arrangement, in which the cylinders may be rotated in opposite directions, vanes m, Fig. 3<a>, are provided on the inner cylinder.
Patent GB-739544-A (GB)
Title: Improvements relating to multi-cylinder injection pumps
IPC: F02M59/10
Filed: 1954-05-11
Abstract: 739,544. Fuel-injection pumps. DAIMLERBENZ AKT.-GES. May 11, 1954 [May 12, 1953; Oct. 13, 1953], No. 13796/54. Class 102 (1). In a multi-cylinder fuelinjection pump, the pistons 12 are actuated by cams 18 through the medium of cam followers 11 guided in bores in the pump housing. To prevent rotation of the cam followers, flats 20 are provided on adjacent surfaces which engage a pin 21 mounted transversely in the pump housing; the pin may be fixed or rotatably mounted. The flats may penetrate the material of the cam follower to form an opening to vent the space 24.
Patent GB-217410-A (GB)
Title: A locking device for perambulators
IPC: B62B9/08
Filed: 1924-02-20
Abstract: 217,410. Gladwin, C. V. G. Feb. 20, 1924. Locking by positive detents.-Locking means for the wheels of perambulators comprises a dog clutch controlled by a hand-lever disposed adjacent the handle of the vehicle. The member 1 of the clutch is secured to the wheel spokes 4 by a two-part ring 5 to which the clutch member 1 is attached by screws 6. The other member 9 of the clutch is slidably mounted upon the axle of the wheels and is urged into the engaged position by a spring 10 abutting a member 11 fixed on the axle. The means for controlling the clutch may comprise a handle 20 rigidly secured to a shaft 19 pivoted upon the handle 18 of the vehicle. A Bowden wire 14 extends from a disc 21 on the rod 19 to the slidable clutch member 9. The arrangement is such that when the handle 20 is drawn towards the handle 18 the clutch is disengaged. The control handle or trigger may instead be so arranged as normally to hold the clutch in the disengaged position.
Patent GB-495778-A (GB)
Title: Method of apparatus for the treatment of planiform textile structures in tentering machines
IPC: D06C3/00
Filed: 1937-05-18
Abstract: 495,778. Finishing fabrics. KRANTZ SOHNE, H. May 18, 1937, No. 13863. Convention date, June 11, 1936. [Class 42 (i)] Tentering.-In pin tenters the work is prevented from jumping off the pins by a guard of fabric, bristles, &c. which moves along with the pin chain. As shown in Figs. 1 and 2, the guard is a band of fabric &c. 17 travelling around pulleys 8, 9 and driven by one or both of the pulleys 8, 9 or by the pins themselves. As shown in Fig. 4, the guard is a brush 23 carried by a jaw 19 pivoted to each link of the tenter-chain ; its closing is limited by the shoulder 18.
Patent GB-437959-A (GB)
Title: Improvements in or relating to containers and dispensing devices for powdered soap and the like
IPC: A47K5/10
Filed: 1934-05-08
Abstract: 437,959. Powder distributers. REEVE, A. C., 11, Pownall Gardens, Hounslow, Middlesex. May 8, 1934, No. 13907. [Class 18] In a dispensing device for powdered soap &c. of the kind comprising a pair of telescopic tubular members 10, 21 the outer one 10 of which is closed at its upper end and provided with a fixing bracket 13, 24 for holding it with its axis vertical, while the inner member 21, which serves as a receptacle for the powder, is completely enclosed by the outer member and is provided at its lower end with a discharge opening for the powder on vertical movement of the inner member, the latter, open at its upper end, is a close sliding fit in the outer shell 10 and is provided with a series of discharge apertures 23 around the periphery at the lower end through which powder is discharged on raising the same. The outer member 10 may be flared at 12 and may contain a shield 14 for the apertures 23, which may also limit the downward motion of the inner member 21, actuated by a push rod 19. In a modification, the inner member may be resiliently supported at 25 and actuated by a pulling cord 29. In a further modification the inner member 21 is in the form of a carton, perforated circumferentially adjacent its lower end and covered by a perforated cap, into the base of which the member 19 may be screwed.
Patent GB-1332880-A (GB)
Title: Method of bonding
IPC: B27G11/00
Filed: 1972-03-24
Abstract: 1332880 Bonding wooden elements STATENS SKOGS INDUSTRIERAB and CASCO AB 24 March 1972 [26 March 1971] 13912/72 Heading A4H Wooden elements are bonded together by spraying on to the surface of a least one of the elements a jet of thermo-setting resin and a jet of hardener, both jets being in the form of liquid droplets, and causing the jets to mix together before and/or on reaching said surface/s. The elements may be joined by tongues and grooves, and the joint may be subjected to H.F. heating. The joined elements may be placed in a press. The liquids are applied by airless pumps and spray guns with exchangeable nozzles. The resin is, for example, a precondensate of carbamide, melamine, phenol or resorcinol with formaldehyde, and the hardener contains, for example, formaldehyde.
Patent GB-1428843-A (GB)
Title: Flow control valve
IPC: F15B13/04
Filed: 1973-03-22
Abstract: 1428843 Valves ABEX CORP 22 March 1973 [8 June 1972] 13956/73 Heading F2V A control valve for maintaining constant flow from a pump 18 to a motor 40 comprises a control flow member 11 and a compensating structure 15 co-operating with the flow member to maintain a constant pressure drop across it, characterized by regulating means 13 which controls the rate of opening of the flow member. Fluid from inlet 12 flows to pressure chambers 66 and 98 and lifts the pairs of spools 62, 88. An adjustable needle valve 106 controls the rate of opening of the spool 88 whilst fluid pressure build up in a compensator chamber 74 controls the equilibrium position of the spool 62. The maximum opening of spool 88 is determined by an adjustable stop 82. Excess fluid is returned to the reservoir 22 via port 16. In operation, for a fixed opening of the spool 88 the compensating spool 62 moves in such a way to keep the pressure difference across the flow member 11 constant even with variations in fluid pressure at the inlet 12 and outlet 14. In an alternative embodiment there is no outlet port 16 through which fluid is returned to the reservoir 22. Instead, the spool of the compensating arrangement controls the flow of fluid to the control flow member 11.