baber/WOPTO huggingface dataset:
Patent GB-739083-A (GB)
Title: Improvements in or relating to gear shift mechanism for motor bicycles or the like
IPC: B62M25/04
Filed: 1952-11-24
Abstract: 739,083. Control mechanism for motor-cycles. GREEN, A. V. Nov. 24, 1953 [Nov. 24, 1952], No. 29722/52. Class 136(1). Relates to gear shift mechanism for motorcycles or the like of the kind in which there are at least three gear positions and the gear change is accomplished by movement to and fro of a control member such as a twist grip 12, two gear positions corresponding to the opposite extremities of the travel of the control member while at least one further gear position is given by a setting of the control member in an intermediate position in its travel. According to the invention there is provided a locating member 28 rigidly movable to and fro with a part of the gear shift, and stop means 29, 30 for positively arresting the member 28 when the intermediate gear position is reached, the stopmeans being operatively connected to a clutch control 13, in such a manner that whenever the clutch is disengaged while the gear shift is in one of the extreme positions the stop means is automatically brought into the path of the locating member 28 and when the clutch is reengaged the stop means is withdrawn. The locating member is in the form of an arm 28 mounted on a rotary rod 15 to rock to and fro as the twist grip 12 is turned. The stop means comprises a pair of spring loaded pawls 29. 30 carried on a slider 22 arranged to slide along the rod 15 and connected to a clutch control cable 14. The movement of the slider is limited by the side plates 20 of a bracket 19 mounted on the handlebar 11. The sheath of the cable 14 abuts the plates 20 whilst the core of the cable passes continuously through the slider and carries a collar 25 to pull the slider in one direction as the clutch is disengaged. Return movement of the slider upon re-engagement of the clutch is effected by a spring 26. The arm 28 rocks in a slot 27 formed in the slider 22. The pawls 29, 30 are spaced in the direction of movement of the arms 28 and are depressible independently out of the path of the arm against the action of springs 37. The pawls have steep front faces 33, 34 and oblique rear faces 35, 36 arranged so that as the arm 28 approaches the second gear position it rides over the oblique rear face 35 or 36 of the first pawl it reaches and is arrested by the steep front face 33 or 34 of the other pawl. When second gear has been engaged, the clutch is re-engaged to resume the drive and the slider 22 carries the stop pawls 29, 30 out of the path of the arm 28. To prevent the pawl which arrested the arm at the previous gear change from moving back again to a position in the path of the arm 28 when the clutch is again disengaged a wider arm 38 is pivoted at 39 to the arm 28. A spring 40 is provided to urge the arm 38 to a position when it overlaps the arm 28 at opposite edges by equal amounts. The arm 38 is slightly pushed out of this position by the arresting pawl when the arm 28 is moved to the intermediate gear position but is restored on re-engagement of the clutch.
Patent GB-159810-A (GB)
Title: Improved apparatus for preventing theft or unauthorised use of motor vehicles
IPC: B60S9/06
Filed: 1919-07-21
Abstract: 159,810. Doyle, D. July 21, 1919. Stands or supports; guarding against unauthorized use.-A lifting-jack for attachment to the axle casing of a motor vehicle is provided with means for preventing the lowering of the jack and its removal from the car. The upper part of a hinged casing b is clamped to the axle-casing and the lower part e carries a screw or other jack a, the heads of the securing-bolts i being covered by the lower part of the casing when the jack is in the operative position to prevent the jack from being detached. The jack is operated by means of a handle l adapted to engage the eyelet of a key k which is inserted into the worm g engaging with the worm wheel h. The key has a socket o adapted to engage a pin p on a loose disc p<1>, and the worm has a tooth at one end adapted to engage a recess q in the disc, and a tooth r at the other end adapted to engage a recess s in a fixed sleeve t. A feather m on the key passes through a slot n, and the head m<1> of the feather engages in a casing m<2> in the worm casing p<2>, thus preventing movement of the worm to the right. If the proper key is not used, the jack can be raised,. but if the worm is turned in the lowering direction, the recess q pushes its tooth and the worm to the right, so that the tooth r engages the recess s and locks the jack in the raised position.
Patent GB-486523-A (GB)
Title: Improvements in and relating to drawing and like rollers for textile machines
IPC: D01H5/74
Filed: 1936-11-03
Abstract: Drawing or like rollers for textile machines are provided with a jointless tubular cover of viscose applied in its normal state, without any treatment subsequent to manufacture, and shrunk on and dried.  Specification 116,366, [Class 2 (ii)], is referred to. The Provisional Specification describes also the use of cellulose acetate.
Patent GB-713169-A (GB)
Title: A marker device of the ball point type for use in recording instruments
IPC: B43K1/08
Filed: 1950-12-06
Abstract: 713,169. Recording-apparatus. LEEDS & NORTHRUP CO. Dec. 6, 1950 (Dec. 6, 1949], No. 29893/50. Class 106 (4). [Also in Group XV] In a recording-instrument utilizing a ball-point pen (see Group XV) comprising a reservoir body 15, a feed tube 17 bent at an angle, and a tip portion 20 housing a writing ball which records on a chart 18 supported by a roll 19, radial pins 14 on the body 15, are adapted to engage in bayonet slots in a socket 13 secured to a pivoted carrier 11. The carrier 11 is lightly urged downwardly by a resilient arm 31 secured to the carrier near one end, and provided with a roller bearing 33 at the other end which engages a fixed cross-bar 32. An extension 11a of the carrier co-operates with a fixed scale 12. Specification 476,971, [Group XV], is referred to.
Patent GB-280713-A (GB)
Title: Improved tensioning device for the warps of hand looms
IPC: D03D49/06
Filed: 1926-11-27
Abstract: 280,713. Wiltshire, W. L. G. Nov. 27, 1926. Letting-off warps; take - up motions; warps, tensioning and guiding.- A braking device for one or both back rollers or warp beams B, C of a hand loom comprises a cord F passed around the beam and secured to a chain G and a spring I, the other end of the chain being connected to a lever H controlled by a spring J tensioned adjustably by a chain K. When the lower beam C is alone employed as a warp beam, the upper beam acts as an idle roller. The arrangements may be duplicated at the front end of the loom.
Patent GB-863242-A (GB)
Title: Process for the production of aminoethyl ethers and the resulting products
IPC: C07D295/088
Filed: 1959-09-03
Abstract: b -Aminoethyl ethers are prepared by the reaction of b -carbamido ethyl ethers with salts of hypochlorous or hypobromous acids.  The ethers may contain additional ether oxygen atoms or tertiary amino nitrogen atoms in saturated chains.  The carbamido ethyl ethers may be obtained by the addition of acrylonitrile to mono- or poly-alcohols in the presence of a basic catalyst and saponification of the resulting b -cyanoethyl ethers, or by the addition of acrylamide to mono- or poly-alcohols.  Examples prepare bis-(b -amino ethyl) ether, ethylene glycol bis-(b -amino ethyl) ether, diethylene glycol bis-(b -amino ethyl) ether, 1,2-bis-(b -amino ethoxy) propane, 2,3-bis-(b -amino ethoxy) butane, 1,4-bis-(b -amino ethoxy) butane, 1,2-bis-(b -amino ethoxy) cyclohexane, 2-b -amino ethoxy-cyclo hexylamine, and 1,4-bis-(b -amino ethoxyethyl) piperazine. Additional alcohols specified as suitable starting materials are N-substituted diethanolamines, triethanolamine, N-carboxymethyl diethanolamine, N-bis-(carboxymethyl) ethanolamine, glycols, 1-bis-carboxymethylamino-2-hydroxycyclohexane, N-b -hydroxyethyl morpholine, and 2-dicarboxymethylamino-1-b -hydroxyethoxybenzene.
Patent GB-465165-A (GB)
Title: An electrical contact target device and a missile for use therewith
IPC: F42B6/00
Filed: 1935-10-31
Abstract: 465,165. Projectiles; teaching warfare. TYLLYER, J. Oct. 31, 1935, No. 30055. Drawings to Specification. [Classes 9 (i) and 119] [Also in Groups XV and X] A missile is wholly or in part composed of a plastic mass comprising a plastic modelling compound rendered electrically conductive by impregnation with metal fibres or wire wool. The missile may be used for bombing or target practice, for example from aircraft upon a target boat provided with a plurality of conductor spoke members arranged in zones in circuit with correspondingly numbered signal lights illuminated when a missile is impaled on adjacent spike members.
Patent GB-1203311-A (GB)
Title: Improvements in or relating to friction clutches
Inventor: STEPHENSON CHARLES PHILIP
IPC: F16D13/71
Filed: 1968-06-25
Abstract: 1,203,311. Friction clutch. AUTOMOTIVE PRODUCTS CO. Ltd. 25 June, 1969 [25 June, 1968], No. 30116/68. Heading F2C. The release levers 23 of a spring-engaged friction clutch are mounted by pins 27 and springs 29 on projections 17 on the pressure plate 16 passing through the clutch cover 10, and when the clutch is engaged about the cover at positions radially inward, and outward, of the projections 17 so that the levers maintain the same position relative to the cover when the clutch is engaged, even with wear of the driven clutch plate 22, to maintain a predetermined clearance between the levers and a clutch release bearing. As shown, the clutch is engaged by a dished spring 21, and three equi-angularly spaced levers 23 of channel cross-section are mounted on the projections 17, the base wall 25 of each lever having a slot through which the projection 17 extends. A flange 26a on one edge of the slot prevents radially outward movement of the lever. A leaf spring 29 is also formed with a slot for the projection 17, and with two loops 32 surrounding the pin 27 which is received in a hole in projection 17. Wear of the clutch plate 22 is accommodated by clearance between the base wall 25 and the loops 32, which clearance is first taken up on disengaging the clutch by pivoting the levers. The pins are retained axially by the side walls of the levers, one side wall having an opening to allow initial assembly of the pin.
Patent GB-493483-A (GB)
Title: Improvements in and relating to propulsion devices for cash carrier systems and other mechanical despatch apparatus
IPC: B65G31/00
Filed: 1937-11-04
Abstract: 493,483. Mechanical despatch apparatus. DART CASH CARRIER CO., Ltd., EDWARDS, W. A., and MACHIN, F. Nov. 4, 1937, No. 30205. [Class 78 (i)] In propulsion devices for cash carrier systems, the propelling spring is expanded by the initial retraction of a carrier. The carrier body 36 is suspended from the track 15 by runner wheels 37 and encloses the propelling spring 22. The outer end of the spring is fixed to the outer end of a rod 21 and its inner end is secured to a flange 24 which can slide along the rod. A rubber or like washer 23 is placed between the flange and the end 36b of the carrier body. A trigger member 28 engaging a part 36a of the carrier body is pivoted on a slidable rod 27 which is retracted against the resistance of a spring 34 by pulling the cord 32. The trigger is tripped to release the carrier body when it bears against a stop 39 on the rod 21. Auxiliary springs 25, 38 and a rubber block 28c are provided to absorb shock. The rod 21 is secured to a main bracket 13 which is mounted on a socket 12 adjustable on the support 10. The slope of the track is adjusted by moving a socket 18 along the support 10. The track 15 is kept taut by adjusting a ratchet 16 to which it is secured.
Patent GB-382753-A (GB)
Title: Improvements in apparatus for embossing musical notation
IPC: B41J3/38
Filed: 1931-10-31
Abstract: 382,753. Embossing-machines. FASS, T., 11, Uhlandstrasse, Bochum, Germany. Oct. 31, 1931, No. 30243. [Class 100 (ii).] In an apparatus for embossing musical notation on a matrix, interchangeable dies bearing a minim &c. are mounted rotatably on the embossing head so that they can be rotated through 180‹ to emboss the tail of the note printing either upwards or downwards, other dies bearing brackets for changing the crotchets into quavers being provided. A motor 1, Fig. 1, drives a shaft 8 through gears 3 .. 6 and clutch 7, and the shaft operates the embossing-head 10 through a cam 9. A die-holder 49, Fig. 7, is rotatably mounted on the embossing-head 10 and is held in the two working positions by a catch 54 and notches 51, 52. The matrix 12 is held in a slide 14 which is automatically traversed in a member 15 at each revolution of shaft 8 by a pinion and rack 22, 23, the pinion being actuated by a ratchet 20 and pawl 19, and the pawl being driven from shaft 8 by an arm 18 and eccentric 16 on the shaft. The feed is regulated by an adjustable shield which lies over the teeth of ratchet 20. The member 15 is traversed for vertical spacing of the notes by a double-armed lever 26, pivoted at 27, Fig. 6, the outer end of which moves over a note scale, and the inner end has a pin 31 engaging with slide 31<1> on the member 15. The pin 31 is adjustable in a slot 35 in the lever 26 by means of a screw spindle 34 in the member 31<1> so that the length of the lever arm may be altered. Dies 11 fitting into the die-holder 49 carry the notes, brackets staff lines, and other symbols. The clutch 7 is engaged by a lever 37, acting on the clutch arm 40 through a member 39, and a spring-urged catch 41 then engages a nose 43 on the clutch arm so as to hold the clutch closed until, at the completion of a revolution, the catch is disengaged by a tappet 44 in the clutch. The clutch is then automatically disengaged by a spring 45 and rotation of the shaft 8 is stopped by a brake 46, 46<1>.
Patent GB-941592-A (GB)
Title: Magnetic circuit using superconductor properties
IPC: H01F6/00
Filed: 1961-08-22
Abstract: 941,592. Masers. WESTERN ELECTRIC CO. Inc. Aug. 22, 1961 [Aug. 29, 1960], No. 30244/61. Heading H3B. [Also in Division H1] Leakage flux is reduced and a high intensity uniform air gap flux, such as might be required for use in a maser, is produced by surrounding the magnetic circuit by a material which acts as a superconductive magnetic insulator. The permanent magnet 1 and air gap 2 is enclosed by a shield 3 of a lead/bismuth alloy (a material exhibiting the Meissner effect at low temperatures, i.e. it will not allow lines of flux to pass through it) and the whole placed in a low temperature cryostat 25. In a modification the permanent magnet is replaced by a winding on the core, which may be a superconductive coil. If the magnetic flux is to be varied the shield is electrically insulated from the core by strips of "Mylar" tape (Registered Trade Mark). Some various shapes of air gap which may be used are described.
Patent GB-1129178-A (GB)
Title: Improvements relating to overload protection in electric supply systems
Inventor: PEARSON FRANK KEITH
IPC: H02H3/093
Filed: 1966-07-06
Abstract: 1,129,178. Protective systems. BALDWIN & FRANCIS (HOLDINGS) Ltd. 29 June, 1967 [6 July, 1966], No. 30376/66. Heading H2K. A protective system employs a capacitor 22 charged to a voltage dependent on the load current to a motor M, a bi-stable circuit 27, 28 changing its state, when the voltage reaches a predetermined value, to de-energize a relay R and open a contactor 4, 5. The capacitor 22 is charged through rectifiers 17 and variable resistors 16, 19-21 from current transformers in the three phases. For low currents the transformers may be omitted, resistors 15, 16 being connected directly in the main circuit. The output of the rectifiers 17 is also applied to a Zener diode 34; under single phasing the Zener diode produces a small A.C. (Fig. 2, not shown) which is amplified and rectified and applied to charge a capacitor 41. When the voltage on capacitor 41 reaches a predetermined value it triggers the bi-stable circuit to open the contactor as before. The relay R is provided with an extra contact 30 which when the relay is de-energized connects a resistor 31 to discharge capacitor 22 allowing the bi-stable circuit to reset.
Patent GB-388122-A (GB)
Title: Improvements in automatic volume control for wireless receivers
IPC: H03G3/22
Filed: 1931-11-03
Abstract: 388,122. Valve circuits for wireless reception. UNITED AMERICAN BOSCH CORPORATION, Springfield, Massachusetts, U.S.A.-(Assignees of Curtis, L. F.; 162, Springfield Street, Springfield, Massachusetts, U.S.A.). Nov. 3, 1931, No. 30480. Convention date, Jan. 24. [Class 40 (v).]. In a receiver employing automatic gain control a screen-grid control tube is arranged to have applied to it amplified modulated signals and is provided with a source of anode current and connected to one or more radiofrequency amplifiers to control the volume. Fig. 2 shows an arrangement in which the grid of the control valve 1 is fed in parallel with the detector valve and a resistance 11 in the anode circuit is used to bias the radio-frequency amplifiers RF. Fig. 4 shows an arrangement in which the auxiliary battery 10 is used only as the anode supply for the control valve 1 and a decoupling resistance 13 is provided in the connection to the amplifier RF. The screen voltage of the valve 1 may be obtained from the anode battery used with this valve. The use of independent power supply to the control valve permits the full anode supply voltage to be available for the amplifying valves.
Patent GB-229987-A (GB)
Title: Machine for manufacturing tubes and other hollow bodies made from pulp
IPC: D21J3/00
Filed: 1923-08-21
Abstract: 229,987. Marks, E. C. R., (Brown Co.). Aug. 21,1923. Moulding pulp.-In the machine for manufacturing tubes &c. from a web of pulp, described in Specification 229,712, the web travelling to the winding mechanism x, Fig. 1, upon a web conveyer b. is broken after a predetermined amount has been wound by moving into engagement with said web a breaker roll 35, about which the web then passes, and said roll, in order to remove the web therefrom and permit it to travel again with said conveyer, is moved out of contact with the web and at the same time is moved in the same direction as the web convever The breaker roll 35 is mounted upon hangers 36, which are pivoted in brackets 37 which have a slight rocking motion in bearing 38 on the frame of the machine, the hangers being raised and lowered by links 40, Fig. 13, and partially rotated by links 49, which links are operated from two adjustable cams 47 on a shaft 48 of the timing mechanism through other links 41, 43, 44, 45 and links 50, 51, 52, 45 respectively. In operation, when the winding of a tube is completed, the timing mechanism is automatically operated and the shaft 48 rotates, causing the breaker roll 35 to drop on to the web and break it. The winding then continues until the tail end of the web has been wound up on to the mandrel, after which the timing mechanism operates to withdraw the finished tube and position a new mandrel. During this time, the roller, which is driven preferably at the same speed as the conveyer b, remains down and picks up the web, which may be removed from its surface by a doctor y. When the new mandrel is positioned and the web is to be broken again, the cams 47 raise the breaker roll 35, by means of the links 40 &c., and also pull it slightly forward, by means of the links 49 &c., so that the movement of said roll is accelerated when moving out of contact with the web. Specifications 209,115 and 210,716 also are referred to.
Patent GB-809129-A (GB)
Title: Apparatus for fusion butt welding the adjacent longitudinal edges of tube lengths
IPC: B23K13/02
Filed: 1955-10-25
Abstract: 809,129. Making tubes; welding by fusion; angular bending. LINDE'S EISMASCHINEN A.G. FUR. Oct. 25, 1955 [Nov. 25, 1954; May 18, 1955], No. 30505/55. Classes 83 (2) and 83 (4). In a machine for fusion welding the longitudinal edges of pre-bent tubes lengths comprising a feed-bed constituted by a plurality of coaxial and at least partially annular supporting elements, a plurality of feed rollers for moving each length and pressure rollers for contacting each length and welding means for welding the longitudinal edges, the pressure rollers are provided with mountings arranged circumferentially on the elements and directed inwards and each pressure-roller mounting is constructed to permit free rotational movement of its roller about an axis during movement of each length whilst maintaining the direction of the axis normal to the direction of motion of the portion of the length contacted by the roller so that the roller contacts the length with only rolling friction. In an embodiment a pre-bent tube 1, Figs. 1 and 2, is fed by driven rubber-coated rollers 6 towards the welding-point 3 through support elements 2 each having a series of pressure rollers 10 to elastically close the open slit in the tube. Each pressure roller comprises a ball supported by smaller balls in a partspherical recess in the end of a plunger spring pressed towards the tube. A support bar mounts idler rollers 7 and is carried by a member 8 projecting through the slit in the tube. A coded copper saddle may be carried by the member 8 to engage the seam. The pressure rollers may have castor mountings. In a further embodiment tube lengths which have been welded internally in an apparatus similar to that of the first embodiment are fed by rollers 6a, 6b, Fig. 4, through annular or nearly annular elements 2 similar to those of the first embodiment to a weld head arranged over the point 3. The axes of the rollers 6a are swingable independently of those of rollers 6b and the speeds of the rollers are relatively adjustable to allow the rotation of a tube length until its seam is in the correct position. Two abutting tube lengths may be welded if the axes of the rollers 6a, 6b are arranged parallel to the tube axes. The pressure rollers may be gas or fluid pressed. To weld the internal seam of a tube the welding head is fixed to a support-bar within the tube which latter travels with its seam downwards and a cooled copper saddle is pressed against the outside of the seam.
Patent GB-289355-A (GB)
Title: Piston vaive with externally adjustable piston packing
IPC: F16K3/24
Filed: 1927-11-14
Abstract: 289,355. Marmorek, H., and Franke, E. O. Nov, 14, 1927. Closure members, simple lift.-In stop valves of the piston type, means are provided within the valve casing enabling the compression of the packing elements of the piston to be adjusted by rotation of the valve spindle in either limiting position of the piston. The valve piston comprises discs 8, 9 threaded on the spindle 5 and serving to compress packing elements 10. The disc 9 is formed with tapered lugs or teeth 29 adapted to engage a transverse rib 28 at the lower end of the chamber, whilst ribs 30 on the disc 8 are similarly adapted to engage stops formed by grub screws 32 at the upper end. The valve is normally operated by rotation of an externally threaded sleeve 15 freely mounted on the spindle and imparting longitudinal movement thereto. The spindle can be rotated by application of a tool to lock-nuts 21, 22 on the threaded end 20 thereof, and when so rotated in either limiting position of the piston, one or other of the discs 8, 9 is held by engagement of the stops or ribs.