baber/WOPTO huggingface dataset:
Patent GB-728386-A (GB)
Title: Improvements in and relating to electric motor control systems
Inventor: RAYDEN RAYMOND GEORGES
IPC: B65H23/18
Filed: 1951-08-30
Abstract: 728,386. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 28, 1952 [Aug. 30, 1951], No. 20505/51. Class 38 (4). [Also in Group XXXVII] A strip of material 43 is unwound from a reel 1 which is coupled to a machine 2 acting as a drag generator. The strip passes through pinch rolls 8 and is cut into two ribbons 43a, 43b by means of a rotary slitter 12. The two ribbons then pass through pinch rolls 16 and are wound on reels 21, 29. The pinch rolls 8, 16 are used to keep the strip flat while it is being cut. The linear speed of the strip is determined by the voltage of generator 37 which is connected to the machine 2 as well as the motors driving the pinch rolls, slitter and coilers. The generator has a field winding 38 connected to a potentiometer 38 supplied from an exciter 40 which also provides a constant potential supply for the field windings of the motors and a number of regulating machines. The tension of the strip being wound on reel 21 is controlled by amplidyne 24 which is excited in accordance with the difference between a constant quantity and one dependent upon the armature current of the motor 22 so that the coiler motor excitation is automatically adjusted to maintain a pre-set armature current and the motor speed is thus reduced as the coil builds up. The tension of the strip being wound on reel 29 is similarly controlled. The field of the machine 2 is regulated by means of an amplidyne 4 to maintain a constant current in the armature of the pinch roll motor 17. If the drag of the uncoiler 1 increases above a pre-set value, the strip slows down and the armature current of the motor 17 increases, thus strengthening the excitation of amplidyne field winding 6. The amplidyne 4 then reduces the excitation of the uncoiling machine, the back-tension is decreased, and the armature current of the pinch roll motor is returned to normal. Similar operation obtains if the back-tension of the machine 2 is insufficient. In this manner the strip speed and tension remains constant as the back-tension of the uncoiler varies with the reduction of the diameter of the coil being unwound. In a modification, the field of the uncoiler machine may be controlled in accordance with the difference between a reference voltage and a voltage derived from a tachometer generator driven by the pinch rolls 16.
Patent GB-1047559-A (GB)
Title: Hydraulic emergency valve
IPC: F16K27/07
Filed: 1965-05-14
Abstract: 1,047,559. Valves. WHEATON BRASS WORKS. May 14, 1965 [May 14, 1964], No. 20517/65. Heading F2V. An emergency valve controlling the discharge from a tank has a movable closure member 15 with a stem 21 acted upon by a number of radially arranged springs 29 through a plate 27; the valve is opened by applying fluidpressure beneath a piston 24 connected to the stem 21. The stem passes through bearings 22, 23 and a seal comprising rings 35, 36 with compressible rings 37 therebetween; a spring 38 is disposed between bearing 23 and ring 36. A groove 39 in ring 35 leads to a port 40, thereby indicating any leakage which occurs; a similar port 41 serves the same purpose in connection with the piston 24. The springs may be enclosed in a casing 42. The seat 16 is at one end of an elbow the opposite end of which is weakened 43 to permit breakage thereof. The elbow may be surrounded by a steam jacket 44. The position of the outer end 34 of the stem 21 serves as a valve position indicator.
Patent GB-1219876-A (GB)
Title: Improvements to master-slave manipulators
Inventor: TOWNSEND ERIC
IPC: H04L5/16
Filed: 1969-04-22
Abstract: 1,219,876. Electric correspondence control systems. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 22, 1969 [April 23, 1968], No.20536/69. Heading G1N. An articulated slave member 5 (Fig. 1) is connected to a similar master member 1 through a plurality of automatically balanced potentiometers P E , P M  connected in pairs in bridge circuits, the unbalance signal selectively energizing clutches 21 to associate a continuously running motor M with the appropriate slave element. Mechanical details for mounting the potentiometers Fig. 3 (not shown) and for the motor/clutches assembly Figs.4, 5 (not shown) are described.
Patent GB-1285166-A (GB)
Title: Improvements in or relating to accumulators
IPC: H01M50/673
Filed: 1971-04-19
Abstract: 1285166 Secondary batteries ROBERT BOSCH GmbH 19 April 1971 [29 Jan l970] 20556/71 Heading HlB Overfilling of a wet accumulator is prevented by providing each cell 6 with a tube 9 communicating to a common electrolyte container 8 via a small hole 10. When the cap 7 is removed, withdrawing the sealing plugs 13 electrolyte flows through the holes 10 into the cells until the electrolyte level covers the bottom of the tubes 9, when the air pressure build up within the tube halts the flow, air within the cells being vented via a gas vent 17 (Fig. 1 not shown). The stable level of electrolyte is reached when the depth the tube extends under the electrolyte is equal to the head of electrolyte in the common electrolyte container 8. The block cover 2 may be of polypropylene and is sealed by glue, cement or welding to the polypropylene electrolyte vessel 1. The closure cap 7 may be hinged to the block and provided with means to aid removal. Seal portion 14 and further tubular seals in association with member 13 (Fig. 3, not shown) are included. When the cap is in place the cells are sealed with respect to the electrolyte container 8. Measuring marks for electrolyte level and access points for dip sticks or hydrometer may be provided in association with the gas vent.
Patent GB-148572-A (GB)
Title: Improvements in and relating to steering mechanisms for agricultural vehicles
IPC: A01B69/00
Filed: 1920-07-10
Abstract: 148,572. Bernstein, R. Aug. 25, 1916, [Convention date]. Addition to 148,571, [Class 79 (iii), Motor-vehicles, Arrangement &c. of parts of]. Void [Published under Sect. 91 of the Act]. Controlling different functions by same handle. -Motor-driven vehicles and implements, such as those described in the parent Speicfication, are steered by braking the driving-wheels, and are provided with means for locking the motcr truck at any angle with the implement frame, which locking-mechanism may be connected with the brake-actuating mechanism so as to be thrown into or out of gear automatically when either brake is taken off or put on, respectively. The brake shoes are carried by bell-crank levers connected by links to a hand-lever n. The motor truck may be locked at any angle with the connecting-frame by means of a segment and a pawl or brane shoe q. A pin r on the lever n engages a curved bell-crank lever s connected with the pivoted and spring-pressed pawl q by a tension member v, so that any movement of the lever n from the central position disengages the locking- mechanism.
Patent GB-1029653-A (GB)
Title: Improvements in and relating to the winding of textiles
IPC: B65H54/28
Filed: 1961-06-08
Abstract: 1,029,653. Winding webs. G. H. WILFORD and P. LADOUS. June 7, 1962 [June 8, 1961], No. 20664/61. Heading B6B. [Also in Divisions D1 and G1] A machine for winding a plurality of narrow textile fabrics 2 simultaneously comprises bearings 3 upon which a rotatable cylinder 1 having the fabrics 2 wound thereon is mounted, means to releasably receive and rotate at least one spindle 11, 12, 13 or 14 upon which a number of cards or bobbins 7, 8, 9 or 10 are mounted to rotate therewith to receive the fabrics 2, and means 6 for traversing the fabrics 2 relative to the cards or bobbins to obtain a uniform lay of fabric on each card or bobbin. Lace edgings 2 pass under a freely rotatable roller 4 and over a plush-covered roller 5 to the traversing guides 6. Each guide 6 comprises members 60, Fig. 3, adjustable and slidable on parallel rails 46, 46b and between which the edgings 2 pass. Each rail 46 is reciprocated in the direction of the arrow A, Fig. 5, by a cardioid cam 50 through the linkage shown. The spindles 11, 12, 13, 14 are driven by a motor 17 through the system 18, 19, 20, 24, 21, 23, 15, the V-belt 19 allowing for variation in the drive. The cam 50 is driven from the motor 17 by a worm drive 25. To facilitate removal from the machine, each spindle is provided with a dog received in a shaft 62, Fig. 2, spring biased towards the spindle and which is retractable by a small amount, the other end of the spindle being received in a shaft 63. The spindles 11, 12, 13, 14 are each provided with a clutch having a plate 37, 38, 39 or 40, the drive side of each clutch being adjustably biased by a compression spring towards the inner plate. A spring is provided at one end of each spindle to press the bobbins into engagement with each other and with an abutment 64. The yardage wound on each bobbin is recorded by a counter 30 a shaft 29 of which is rotated by a chain 28 passing around a sprocket 27 on the roller 5. Braking means (not shown) may be associated with the cylinder 1 or a further roller associated with the roller 5 to secure the edgings 2 thereto in the event of a breakdown.
Patent GB-905717-A (GB)
Title: Improvements in or relating to valves
Inventor: FLOYD TERENCE JOHN
IPC: F16K3/314
Filed: 1959-06-17
Abstract: 905,717. Valves. AUDCO Ltd. June 10, 1960 [June 17, 1959], No. 20741/59. Class 135. A valve having components which slide over one another wherein the closure member, e.g. rotary plug 10, its seat or each of these components is formed of non-porous material, e.g. iron, stainless, carbon or alloy steel, nickel bronze or copper alloy and the sliding surface provided with a layer 12 of porous material similar to the non-porous material or different from it, e.g. a synthetic resin, formed by spraying, sintering, phosphating or other chemical treatment which forms a matrix absorbing part of a coating 13 of synthetic resin having non- seizing and sealing properties, e.g. polytetrafluoroethylene. Coating 13 in the form of a dispersion may be applied by dipping, spraying or vacuum impregnation followed by heating, and may be repeated several times. Alternatively, the coating may be formed from a tubular envelope.
Patent GB-597593-A (GB)
Title: Improvements in spring suspension systems
IPC: B62B5/02
Filed: 1945-08-13
Abstract: 597,593. Road-vehicle resilient suspensions. MURRAY, J. B: Aug. 13, 1945, No. 20779. [Class 108 (ii)] ' A spring-suspension for a wheel comprises an axle 1 on which is rigidly mounted an eccentric 4 carrying a ball, roller or other wheel bearing 5 on which is mounted the wheel 7, a spring 10 or other resilient member being associated with a lever 8 connected to the axle 1 to permit restrained, part rotational, movements of the axle as a result of loads and/or shocks sustained by the wheel. As applied to a wheel barrow the axle 1 is journalled in brackets 2 on the barrow and carries the arm 8. The spring 10 is mounted between an abutment 11 on the bracket 2 and a shoulder 12 on a rod 9, pivotally connected to the arm 8 and slidable in the bracket 11. The spring 10 may be placed under initial stress by a cotter pin 13 in the rod 9 and a rebound spring 15 may be provided. Leverage may be adjusted by means of alternative holes in the arm 8 for the pivotal connection of the rod 9. In a modified construction, Fig. 3 (not shown), the spring comprises a torsion spring carried in the cylindrical housing rigid with the axle. The abutments of the spring comprise a series of alternative holes in the end portion of the housing and a hole in a disc secured to the bracket in which the axle is journalled. The spring assembly may be provided on one or both sides of the wheel and in the latter case the springs may be arranged in opposition, so that one functions as a rebound spring.
Patent GB-883430-A (GB)
Title: Improvements in or relating to electrical switching devices
IPC: H01H51/27
Filed: 1960-06-14
Abstract: 883,430. Electrically - released switches. WESTERN ELECTRIC CO. Inc. June 14, 1960 [July 1, 1959], No. 20837/60. Addition to 870,906. Class 38 (5). A switching device having a magnetic member which has two stable magnetic states as disclosed in the parent Specification, has a permanent magnet arranged so that its magnetic field is cancelled by the magnetic member in one of said states. As shown in Fig. 1, a sealed contact device 1 has magnetic reeds 2 and one terminal 3 surrounded by an axiallypolarized permanent magnet 4. The other terminal 3 is surrounded by a member 5 of a material having two remanent magnetic states. A coil 6 surrounding the member 5 may be pulsed, as in the parent Specification, to establish remanent magnetic states which either assist or oppose the permanent magnet flux. In Fig. 3, the remanent member 10 and the permanent magnet 11 engage respective terminals 3 and a low-reluctance rod 13 provides a flux return path. Alternatively a second contact device may replace the rod 13 (Fig. 4, not shown).
Patent GB-512360-A (GB)
Title: Improvements in piston rings
IPC: F16J9/20
Filed: 1938-07-14
Abstract: 512,360. Piston rings. GREIFENSTEIN, E. R. R.- July 14, 1938, No. 20910. Convention date, Nov. 19, 1937. [Class 122 (i)] A number of waved spring rings n, used in combination or not with flat or conical rings o, .are provided with pins or lugs l interlocking the rings to maintain their slits spaced apart. The waved rings g may be of wedge form for use between conical rings h, Fig. 5, or between the outermost conical rings and the walls of the groove. The Specification as open to inspection under Sect. 91 describes also rings of the forms shown in Figs. 8 and 10 (Cancelled). This subjectmatter does not appear in the Specification as accepted.
Patent GB-243101-A (GB)
Title: Improvements in plungers used in pumps and syringes
IPC: A61M5/315
Filed: 1924-09-05
Abstract: 243,101. Lilly, J. Sept. 5, 1924. Buckets; valves and valve seats, arrangement of.-In a pump bucket of the type in which one or more cup leathers act both as packing and valves, the leathers c, cc are located between slotted brass or lead, nuts a, d and f, dd, which can be locked in position by compression of their flanges e, f. The nuts d, dd close the central holes in the cup leathers c, cc during the upstroke of the bucket, while during the downstroke the cup leatliers nest against the nuts a, f.
Patent GB-590486-A (GB)
Title: Electron discharge devices
IPC: H01J19/80
Filed: 1944-10-27
Abstract: 590,486. High-frequency discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. Oct. 27, 1944, No. 21023. Convention date, Nov. 23, 1942. [Class 39 (i)] A high-frequency electron discharge device comprises concentric annular cathode, grid and anode electrodes 10, 64, 94, Fig. 1, and gridanode and grid-cathode resonators 88, 90 and 32, 34 respectively, and the cathode 10 comprises a cylindrical conducting surface 12 coated with electron emissive material, the axial length of the cylindrical cathode surface 12 being small compared with its radius. The cathode ring 12 is preferably of channel section, as shown, and is clamped through a plurality of metal discs 168 by means of a pair of partially oblique discs 152, 153 supported by a cylindrical shell 46, 169. The leads to the cathode heating coils, of which there may be six, Fig. 2 (not shown), extend through apertures in the cylindrical shell 46, 169, as shown, and are attached to a hollow tube 16 and to a rod 22 extending axially therein which form the heater terminals, the rod 16 being secured to the cylinder 46 through a cup-shaped member 14. Six heat shields are placed behind the heating coils, Fig. 2 (not shown), and are attached to the cylinder 46, 169 by means of brackets. The toroidal grid-cathode resonator 34 is attached to the member 14, and the resonator 32 is supported in spaced relation from the cylinder 169 by means of a member 36 secured to a threaded bolt 38, and may be tuned by movement of a nut 44. The vacuum is maintained in the device by a flexible metal membrane 48. An input coupling loop 51 is provided. The anode 94 is mounted between flanges 93, 95 of the toroidal grid-anode resonators 90, 88 respectively and may be cooled by water flowing through pipes 180, 190 arranged in flat spiral formation as shown. Output coupling loops 96, 178 are provided. The grid 64 is closely spaced from the grid-anode and gridcathode resonators and consists of a plurality of concentrically spaced wires 66 supported at their ends by annular members 68, 72, which may be strengthened by corrugated cylinders 156, 158 respectively. The member 68 has a flange 76 which is mounted on one or more rods 81. The member 72 may be secured to the resonator 88 by insulating means (not shown). The resonator 88 or 90 may also be tuned by making it slidable similarly to the resonator 32. The device may be used as an amplifier, as shown, or as a self-excited oscillator, Fig. 5 (not shown).
Patent GB-1377436-A (GB)
Title: Work guide for sewing-in sliding clasp fastener stringers
IPC: D05B35/10
Filed: 1973-04-17
Abstract: 1377436 Work guides LIGHTNING FASTENERS Ltd 17 April 1973 [5 May 1972] 21083/72 Heading DIG A work guide for attaching stringers to garments in a sewing machine comprises a base plate 10, a rib 12 with one or more flanges 13 extending parallel to the base plate to form a garment guide 14 and upward extensions 15 on the or each flange to form stringer guides 16. Extra flanges 21 acting as upper material guides may be omitted. The base plate may be attached to the machine throat plate 17 as at 18 and the lead in edge of the base plate may be inwardly angled to guide the work as at 11. The flanges 13 extend beyond the edge 11 i.e. upstream in the direction of fabric feed.
Patent GB-846359-A (GB)
Title: Improvements relating to marine transportation of cargo in towed, flexible, collapsible containers
IPC: B63B35/28
Filed: 1958-07-02
Abstract: 846,359. Flexible barges. FLEISHER, A. July 2, 1958 [July 5, 1957], No. 21168/58. Class 113. A flexible, collapsible container for the transport of cargo comprises a wall 10, Fig. 1, shrouded in a net or sheath 12. The container may be mono- or multi-cellular, as in Fig. 3, or compartmented as in Fig. 4, the compartments having restricted connections, or being separated, as at 4 and 6. The container may have fins to prevent yaw or roll, have rudder surfaces, and/or have diving vanes as on submarines so that it can be towed under water. It may be ballasted to add stability or to cause it to ride lower in the water. It may have protecting deflector plates or shields, or an external envelope to reduce surface friction and provide a cushion of water or air between the envelope and the container. Buoyant devices may be provided when dense material is to be carried.
Patent GB-1037751-A (GB)
Title: Production of omega chloro- and bromo-tiglaldehyde and its acetal and acylate
Inventor: FREYSCHLAG HERWIG
IPC: C07C45/54
Filed: 1963-05-28
Abstract: 4 - Chloro - and - bromo - 2 - formylbutene-(2) or acetals and acylates thereof are produced by treating 2-formyl-2-hydroxybutene-(3) or its acetals or acylates with thionyl chloride, thionyl bromide or phosgene in the presence of N,N-dialkyl substituted amides of low molecular weight fatty acids, including compound in which the N alkyl groups are connected to each other direct or via oxygen, or N-alkyl substituted lactams, optionally in the presence of anhydrous solvents when a concentration of 0.01 mol of the amide relative to the formyl-hydroxybutene is preferred.  2 - Formyl - 2 - hydroxybutene - (3) is prepared by hydrogenation, by the process of Specification 871,804, of 2 - formyl - 2 - hydroxybutyne-(3), itself obtained by reacting methylglyoxal acetal with acetylene.  It is stated that the compounds prepared by the process of the invention find use in the preparation of the corresponding 4-hydroxy-2-formyl-butene-(2) compounds.
Patent GB-654894-A (GB)
Title: Improvements in or relating to disc brakes for vehicles
IPC: F16D55/22
Filed: 1948-08-12
Abstract: 654,894. Disc brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Aug. 12, 1948, No. 21256. [Class 103 (i)] In a disc brake similar to that described in Specification 625,726, the force applied by the fluid-pressure operated piston and cylinder 12, 8 to the brake discs is increased or reduced by the use of force transmitting levers 14, 15, pivoting at suitable points along their length. As shown, the levers 14, 15 have their inner pair of ends 14a, 15a engaged by the piston 12, their outer ends pivoting on fixed abutments 16, 17 and are connected intermediately by pins 11a to rods 9 which extend through the annular space 3 between the inner and outer discs 1, 2, so as to clamp together the friction members 18, 19. Two alternative arrangements are described in which the levers have fulcra intermediate their ends. According to the Provisional Specification the actuating mechanism may be used on a brake, as described in Specification 654,885.
Patent GB-740898-A (GB)
Title: Improvements in and relating to roller bearing cages
IPC: F16C33/46
Filed: 1952-08-25
Abstract: 740,898. Roller-bearing cages. SCHAEFFLER, G., and SCHAEFFLER, W., [trading as INDUSTRIEWERK SCHAEFFLER OHG.]. Aug. 25, 1952, No. 21269/52. Class 12 (1). [Also in Group XXII] In a needle bearing cage having rails d which divide the cage into chambers b each accommodating a single needle c, projections g, h<SP>1</SP> and h<SP>2</SP> are formed on the outside and inside of the rails d to prevent the rollers from falling out. The projections are formed by pressing channels k, l<SP>1</SP> and l<SP>2</SP> into the outer and inner surfaces of the rails. The needles c are resiliently forced into the chambers.
Patent GB-230726-A (GB)
Title: Improvements in or relating to cuspidors
Filed: 1924-09-09
Abstract: 230,726. Pieper, A. F. Jan. 23, 1924, [Convention date]. Spittoons.-A trap consisting of a partly perforated vessel 37 and a spout 30 suspended in it rests on shoulders in the outlet of the basin 20. A funnel 32 directs liquids into the trap. A baffle 40 is fixed across the lower end of the spout 30. The basin rests in a socket piece 21 which is retained in a hub 18 carried by a hollow arm 5. An inclined flushing channel is formed round the basin, and in order that the basin may be correctly positioned relatively to the flushing nozzle carried by the arm 8, a dowel pin 27 and holes therefor are provided.
Patent GB-1397514-A (GB)
Title: Filter apparatus for preparing aromatic extracts
IPC: A47J31/44
Filed: 1973-05-04
Abstract: 1397514 Infusing MELITTA-WERKE BENTZ & SOHN 4 May 1973 [4 May 1972] 21344/73 Heading A4E [Also in Division B1] A filter for making tea or coffee comprises a filter funnel, Figs. 1-3 (not shown), and an inner filter bag, Fig. 5, of folded paper which is made from a blank shaped as Fig. 4. The chevron shaped blank is stamped from a flat or folded sheet of filter paper and edges 10 enclose an angle of 120 degrees. The bag is a square crosssection pyramid having an apex angle of approximately 71 degrees, and the funnel is of identical shape. The particular shape eliminates wastage of paper when stamping, Fig. 7 (not shown).