US66914A - tynan - Google Patents

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US66914A
US66914A US66914DA US66914A US 66914 A US66914 A US 66914A US 66914D A US66914D A US 66914DA US 66914 A US66914 A US 66914A
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United States
Prior art keywords
truck
tynan
wheels
plate
pivot
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/16Centre bearings or other swivel connections between underframes and bolsters or bogies

Description

J. E. & W. P. TYNAN.
Car Truck.
Patented July 16. 1867.
J I U HIV A Inventor:
AM. PHOTD-LITHO.C0. NMWSBORNE'S PROCESS.)
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JOSEPH E. TYN AN AND WILLIAM P. TYNAN, OF PATERSON NEW JERSEY. Letters Patent No. 66,914, dated July 16, 1867.
I IMPROVED LOCOMOTIVE'TRUGK.
flit: firlgetnls norm in in ilgrse Eaters pan on making new flge 5mm.
TO ALL WHOM I'LMAY CONCERN:
Beit known that we, Josnrn E. Tynan and WILLIAM P. TYNAN, both of Paterson, in the county of Passaic, and State of New Jersey, have invented-a new and useful improvt ment in Trncks for Locomotives and Railroad Cars; and weh'creby declare the following to be a full, clear, and exact description of the same, reference being bad to theiannexed drawings, making a. part of this specification, and to the figures and letters marked thereon, in which Figure 1 is a, vertical longitudinal section.-
Figure 2 is a plan or horizontal view.
Figure 3 is a longitudinal section, the same as fig. 1, but showing the several parts in adifi'erent position.
Figure 4 is an end elevation.
Like letters refer to like parts in all the figures.
The nature of our invention consists in giving to trucks, or pilot-wheels of locomotives or cars, or other rolling-stock on railroads, in addition to the usual centre-bolt or pivot-motion, a lateral movement through a limited range, so as to accommodate the wheels of trucks to any difi'erence ofcurvature in the rails which may exist between the wheels of the truck and the drivers in locomotives, or other accompanying wheels.
A is a strong beam or girder, which spans and is carried by the ordinary truck-framing. This beam-is secured to the truck-frame by ineansof the lugs, seen upon either end in the drawing, and lies thereon athwart the track. It thus, together with the usual framework, unites the opposite wheels of the truck. On the upper surface of the beam A rise two strong flanches, which, besides strengthening the beam, serve as guides to the socketplate B, which is fitted and rests between said flanches. The pivot-plate C, the lower portion of which is cylindrical and fitting into the socket-plate B, is free to revolve within the same. D is a centre or bolster-bolt, for the purpose of uniting A, B, and C, and also for the purpose of limiting the motion,- by means of the slot, seen in A, figs. 1, 2, and 3, through which the bolt D.passes. E E are two elliptical rollers, each having two wings or teeth radiating from its minor axis. These fit into the slots F F F F, and prevent the rollers from leaving their proper position when rolled in either direction through the limited range allowed .bythe bolt and slot, seen in figs. 1, 2, and 3. The socket-plateB is supported by, and to a certain extent (limited by the slot in A and bolt D) rolls upon the elliptical rollers E E. v The pivot-plate supports the forward end of the boiler or the body of the car, as the case may be, to which it maybe attached by means of a saddle-piece or other suitable contrivance, as seen in dotted lines in fig. 1. The truck being thus attached, the pivot-plate C is free to rotate in the socket-plate B, and that being-controlledby the fianches of the beam'A, the truck-wheels will accommodate themselves to the varying curvature of the rails when moving thereon, if not otherwise controlled. But the engine being rigid, and influenced by the driving-wheels, alateral motion of the truck with reference thereto becomes necessary. This we obtain by allowing the truck to move from the centre of the boileror body of the car, as thc'case may be, in the manner shown as an extreme example in fig. 3, when the plate B will rise in some degree upon the major axis of the elliptical rollers E E, as shown, The weight of the locomotive or car resting, by means of the interposing plates 0 and B, on the elliptical rollers E E, the tendency of such weight,
being on a rolling incline, is to force back the parts to a central position, as seen in fig. 1, when the drivers of the locomotive are supposed to be running on a perfectly straight track. Other accompanyingp'heels so connected are influenced in the same manner. The pivot, comprising the plates U and B, is free to, travel from right toleft or left to right upon the main truck-beam A, as the divergence from a straight line in' the rails may occur and bedetermined by the driving-wheels and the boiler, or by other wheels and car.
We claim the elliptical winged rollers E E, the beam A, the socket-plate B, the pivot-plate (hand bolt D,
when combined together as and for the purposes shown and specified.
JOSEPH E. TYNAN, WILLIAM P. TYNAN.
Witnesses LAWRENCE Hows, MAXTON Hours.
US66914D tynan Expired - Lifetime US66914A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433528A (en) * 1945-04-24 1947-12-30 Samuel T Peterson Lateral motion device for locomotives
US20100096672A1 (en) * 2002-08-29 2010-04-22 Ireland Philip J Self-aligned, integrated circuit contact

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433528A (en) * 1945-04-24 1947-12-30 Samuel T Peterson Lateral motion device for locomotives
US20100096672A1 (en) * 2002-08-29 2010-04-22 Ireland Philip J Self-aligned, integrated circuit contact

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