US199878A - Improvement in stop-motions for railway drawing-heads - Google Patents

Improvement in stop-motions for railway drawing-heads Download PDF


Publication number
US199878A US199878DA US199878A US 199878 A US199878 A US 199878A US 199878D A US199878D A US 199878DA US 199878 A US199878 A US 199878A
United States
Prior art keywords
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US199878A publication Critical patent/US199878A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical




    • D01H13/00Other common constructional features, details or accessories
    • D01H13/14Warning or safety devices, e.g. automatic fault detectors, stop motions; Monitoring the entanglement of slivers in drafting arrangements;
    • D01H13/16Warning or safety devices, e.g. automatic fault detectors, stop motions; Monitoring the entanglement of slivers in drafting arrangements; responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1616Warning or safety devices, e.g. automatic fault detectors, stop motions; Monitoring the entanglement of slivers in drafting arrangements; responsive to reduction in material tension, failure of supply, or breakage, of material characterised by the detector
    • D01H13/1625Electro-mechanical actuators


0. A. TABO'R. Stop-Motion for Railway Drawing Heads.

No.199,878. Patented Jan. .29, 1878..





Specificationforming part of Letters Patent N 0. 199,878, dated January 29,1878; application filed October 17, 1877.

To all whom it may concern: endof bolt F is beveled, so as to readily en- Be it known that I, G. A. TABOR, of Hope gage with the hook of latch Gr when the bolt Valley, in the county of Washington and State is pushed back forthe purpose of setting of Rhode' Island, have invented certain new the attachment; and the latch is kept in the and useful Improvements in Stop-Motions for proper position to take with the bolt by.a Railway Drawing-Heads; and I do hereby small spring, n, anda stop-pin, 0. declare that the following is afull, clear, and H is a lever, having its fulcrum in a bearexact description thereof, which will enaing. 19, secured to the back or under side of able others skilled in the art'to which it aptable A. The forward end of this lever is pertains to make and use the same, reference bent upward, as shown in Fig. 2, so as to enbeing had to the accompanying drawing, gage with the curved end of latch Gr. The which forms a part of this specification, and other end of lever H is pivoted in an arm, I,

in which which terminates in a socket, 19, into which a Figure l is a part elevation. Fig. 2 is an bent rod, K, is inserted, and kept in place by end view, and Fig. 3 is a top plan. a set-screw, q, thus admitting of the ready ad- Similar letters of reference indicate correjustment of rod K. The upper end of this sponding parts in all the figures. rod forms an oblong 100p, L, through which This invention relates to stop-motions for passes one end of the enlarged shaft of the railway drawing-heads; and-it consists in an upper compact roller 13, the loop or eye beimproved construction and combination of ing so constructed that the shaft will rotate parts, as hereinafter more fully explained, and freely within it. pointed out in the claims. M is an adjustable arm, secured upon rod In the drawing, A is the platform or table from which it passes sidewise and in front which supports the drawing-frame and its of the hinged arm 0, upon which the trumpet operating mechanism. (Not shown in the G is secured. drawing.) a a are the brackets supporting The belt-shifter N is pivoted in a bracket, the compact rollers B B, and O is the trumr, in the end piece of table A, a short rod, 8, pet for conducting the roving in between the passing through a perforation in the upper rollers. D is the shaft which operates the end or handle, which connects with a horimachinery, and d is a fixed and d a loose zontal lever-arm, '0, having its fulcrum at t, belt-pulley at the end of said shaft. The the other end of which projects out over the trumpet O is secured upon the end of an slot is, formed between the guide-strip 7c and arm, 2, pivoted at e. To the front side of the flanged plate E. table A is secured a plate, E, having two per- From the foregoing description, taken in forated bearings, f f, in which slides a bolt, connection with the drawing, the operation F, terminating at its inner end in a catch or of my invention will be readily understood. notch, 9. Around bolt F is placed a coiled The roving having been passed through the spring, h, abutting at one end against the trumpet, in between the compact rollers in the bearing f, and, at the other end, working usual manner, the machine is started byturnagainst a pin, 27, inserted transversely through ing the belt-shifter N so as to bring the belt the bolt. over upon the fixed pulley d. At the same 70 is a narrow strip or plate, screwed, or time bolt F is coupled, with its notched end otherwise secured, upon the top of the brackonto latch G, as shown in Fig. 1 of the drawets f f, so as to form a narrow slot, k, being, the projecting end of lever-arm 0 imtween itand the upper flange of plate E, in pinging, when bolt F is in this position, which the head of pin 1' slides, projecting up against the head of pin 6, which projects up above said slot, as shown. through the slot 70.

G is a latch, pivoted in a projecting plate, If, during the operation of the machine, the l, at m, and curved a little outward at one roving should break while passing through, end, while the other end forms a hook which or after it has passed through, the trumpet 0, takes with the notch g in bolt F. The notched the strain upon this, caused by the roving passing through its narrowopening, will cease, and the trumpet, with its hinged arm 0, will fly back from the head 13 B, thereby pushing against arm M, and consequently impelling rod K forward and downward, which again operates lever H, to which it is hinged by its socket p and arm I, so as to elevate its bent front end, thereby releasing latch G from its hold upon bolt F; and the latter, impelled by the coiled spring *7, will iiy back, carrying with it the pin 2', which works against the projecting endof the lever-arm 0, forcing this back so as to operate the belt-shifter in such a manner as to shift the belt from the fixed pulley d to the loose pulley d", which stops the machine. Similarly, if the roving should break before passing through the head, but after it has passed the trumpet, the upper compact roller B will descend upon the lower roller a distance corresponding to the thickness of the 'rdving,whichis sufificient to tiltrod K and lever H through the intermediate link I, 7 one end of the upper head projecting through theloop or bearing L, which is formed at the upper end of rod K for that purpose, thereby operating latch Gr, bolt F, lever-arm O, and

the belt-shifter N, in the manner already described, so as to instantly stop the machine until the broken ends of the roving have been reunited.

The object of making rod K adjustable, in themanner described, is to make it more or less sensitive to the fall or depression of the r 7 upper compact roller B when a sliver breaks,

and thereby insure perfect operation of the mechanism, whenever this contingency arises,

by having the loop or hearing L of said rod always in immediate contact with the roller by the fall or depression of which it is operated.

Having thus described my invention, I

claim and desire to secure by Letters Patent of the United States- 1. In a railway drawing-head, the plates E k, in combination with latch G, spring h, and

'bolt F, having pint" projecting up through stopping automaticallythe motion of the head on the breaking of the roving, consisting essentially of the adjustable rod K, arm I, lever H, latch Gr, bolt F, lever-arm O, and belt shifter N, all combined to operate substam V tially as and for the purpose herein shown and specified. V

In testimony that I claim the foregoing as 7 my own I have hereto affixed my signature in presence of two witnesses.



US199878D Improvement in stop-motions for railway drawing-heads Expired - Lifetime US199878A (en)

Publications (1)

Publication Number Publication Date
US199878A true US199878A (en) 1878-01-29



Family Applications (1)

Application Number Title Priority Date Filing Date
US199878D Expired - Lifetime US199878A (en) Improvement in stop-motions for railway drawing-heads

Country Status (1)

Country Link
US (1) US199878A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100179404A1 (en) * 2004-07-13 2010-07-15 Dexcom, Inc. Transcutaneous analyte sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100179404A1 (en) * 2004-07-13 2010-07-15 Dexcom, Inc. Transcutaneous analyte sensor

Similar Documents

Publication Publication Date Title
US673907A (en) Portable clothes-line reel.
US31628A (en) Improvement in sewing-machines
US30958A (en) Machine eor winding -woolen kovings
US39845A (en) Improvement in the stop-motion for railway drawing-heads
US690596A (en) Railway-head or other similar fiber-drawing machine.
US446596A (en) Island
US217675A (en) Improvement in mop-wringers
US582770A (en) Thomas watson
US345052A (en) Heney h
US1009028A (en) Automatic shearing-machine.
US1005429A (en) Oscillating fan.
US1168071A (en) Barber's chair.
US608553A (en) Sewing machine
US765433A (en) Fishing device.
US449087A (en) John e
US152899A (en) Improvement in stopping mechanisms for drawing-frames
US1002958A (en) Towel-cabinet.
US362491A (en) Gin-brake
US1009006A (en) Wire-twisting apparatus.
US1160604A (en) Sewing-machine bobbin-winder.
US13351A (en) Ckossctjt-sawietg machine
US568621A (en) Tension device for grain-binding machines
US760482A (en) Time stock-feeder.
US493870A (en) Stopping mechanism for carding-machines
US258870A (en) altmann