Патент USA US2412598код для вставки
Dec. 17, 1946. 2,412,598 D. D. BRUSH TRACK ‘ROLLER CARRIAGE Filed July 30, 1943 2 Sheets-Sheet l’ ' INVENTOR. Don D. Brush BY mm 2,412,598 D. D. BRUSH TRACK ROLLER CARRIAGE Filed July 30, 1945 z ‘ 2 Sheets—Sheet 2 - INVENTOR > z Don D. Brush ' 667W}??? ATTORNEY/5 ' Patented Dec. 17, 1946 2,412,598 UNITED STATES PATENT OFFICE 2,412,598 TRACK ROLLER CARRIAGE Don D. Brush, Detroit, Mich. Application July 30, 1943, Serial No. 496,699 7 Claims. (Cl. 105——141) (Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) 2 The invention described herein may be manu factured and used by or for the Government for governmental purposes, without the payment to Figure 4 is a section on the line 4—4 of Fig ure 1. In Figures 1 and 2 is shown a track I follow me of any royalty thereon. ing any desired path which may, for example, The present invention pertains to a novel track 5 be straight, circular, or in some cases S-shaped roller carriage or skate for moving a given load or U-shaped. The device of this invention, as along a track. One of the uses of the invention previously indicated, adapts itself to changes in occurs in certain military equipment where a the direction of curvature of a track of given machine gun is mounted to roll on a circular track. width. Other applications of the invention will readily 10 The roller carriage includes a frame or body be apparent. The carriage, which is the subject of this in vention, is designed for use with a load that must assume a steady or stable condition when brought to a stop on the track. Consequently, the body of the carriage engages the track at two spaced 2 which is U-shaped at its ends, as indicated by the members 4 and it’, to straddle the track by extending across the top and bottom at two spaced points along the track, as may be seen by an examination of Figures 1 and 2. At the upper side or leg of each U-shaped end is the member 4 positions along its length. formed as a circular cup or race having its open A track of this character is generally suitable side facing downward. At the lower side, the for only one size of straight or circular track member 4’ is a separate circular cup or race hav and is not suitable for a non-circular curved track 20 ing a separate bottom 3. The parts are suitably secured together where necessary. in which the direction of curvature changes. The bottom of each cup, recognizing that the This limitation is material in the case of a track from which the load must be supported laterally, such as a machine gun track on a military ve upper cup is inverted, is formed with an opening 5 therethrough for a purpose that will presently appear. Within each cup is rotatably mounted a disk 6 having a pair of spaced lugs 1 extending r hicle. The invention provides a carriage struc ture whereby the horizontal sides of the track therefrom through the adjacent opening 5. Be are engaged by opposed horizontal rollers. tween each pair of the lugs is mounted a roller The principal object of the invention is to pro 8 carried on a pin 9 passed through the lugs, vide a carriage of this character which is appli cable to a given track width, regardless of curva 30 with a suitable bearing I0 inserted between the pin and the roller. These rollers engage, respec ture, and automatically adjusts its rollers to the tively, the top and bottom of a track as clearly proper relative position. In the accomplishment shown in Figure 2. Suitable annular bearings of this object, a pair of spaced horizontal rollers H are mounted over the upper disks 6 and at for engaging opposite sides of the track is pro both sides of the lower disks. The upper disks vided at each of the two positions where the car 6 are retained in their respective cups 4 by the riage is to be supported by the track. Each pair engagement of the rollers 8 with the top of the of rollers is carried by a member which is freely track. rotatable in the carriage body and carries a verti Each of the disks 6 carries a pair of horizontal cal roller. An alteration in the direction of the rollers l2 engaging opposite vertical sides of the track requiring change in the direction of the track adjacent to the horizontal surface engaged center line of the spaced horizontal rollers, auto by the roller 8 in the corresponding assembly. matically produces such a change by causing a Each roller I2 is retained on its disk 6 by a headed rotative movement of the member carrying the pin 13 having a reduced threaded end 14 screwed rollers. 45 into the disk. A suitable bearing I5 is interposed An illustrative embodiment of the invention is between the body of each pin l3 and the roller described by way of example in the following de~ l2 carried thereby. Each disc 6 and its rollers scription and illustrated in the accompanying 8 and I2 may be termed abogie or truck. drawings in which: The body 2 is bow-shaped in plan, so that the Figure 1 is a plan view of the device mounted 50 intermediate portion of the frame or body 2 is on a track; offset laterally outward from the track and is Figure 2 is a vertical section on the line 2--2 formed with a suitable vertical bearing or socket I5 in which may be mounted the load, such as Figure 3 is a section on the line 3-—3 of Figure the pivot stem of the cradle of a machine gun, 2; and 55 a portion of a crane, a suspended pulley block, of Figure 1; _ 2,412,598 3 or the like. The carriage is stopped and locked in rigid load supporting relation to the track in any desired position on the track by a suitable brake as shown, for example, in Figure 4. In this case the brake consists of a pair of jaws 20 and 2| respectively engaging the top and bottom of the track and slidably mounted 4 ers mounted in each disk and adapted to en gage opposite sides of a track, and means carried by each disk adapted to engage an in termediate horizontal surface of the track. 2. A track roller carriage having spaced por tions adapted for support at spaced positions along a‘ track,‘a pair of spaced horizontal disks rotatably mounted in each portion and adapted on the body 2' by means of headed pins 22 ex to be positioned respectively at the top and tending from the latter into vertical keyhole slots 23 in the jaws. The jaws are adjustably 10 bottom of the track, a pair of horizontal rollers mounted in each disk and adapted to engage attached to one another by toggles consisting opposite sides of a track, and a vertical roller of a pair of links 24 having one end pivotally carried by each disk and adapted to engage an attached to the upper jaw 28 and a pair of le intermediate horizontal surface of the track. vers 25 pivotally attached to the lower jaw 2| 3. A track roller carriage having spaced por and to which the remaining ends of the links 15 tions adapted for support at spaced positions 24 are pivotally connected at 26. The free along a track, a pair of spaced horizontal disks or outer ends of the levers 25 are joined by a } rotatably mounted in each portion and adapted bar 2'! which constitutes an operating handle. to be positioned respectively .at the top and The edges of the jaws are preferably reinforced 20 bottom of the track, a pair of horizontal roll by webs 28. ers mounted in each disk and adapted to en On a circular track a center line through gage opposite sides of a track, and a vertical each pair of rollers l2 must be radial of the roller carried by each disk and adapted to track. The angle formed by the center lines engage an intermediate horizontal surface of from both ends of the carriage remains con stant in a track of given radius, but obviously 25 the track, the center line of the horizontal rollers carried by any given disk passing varies from one track to another having a through the center of rotation of that disk. different radius or a change in direction of 4. A track roller carriage as set forth in claim curvature. The device herein disclosed adapts 3 wherein locking clamps are disposed on said itself to such changes through the rotatable track roller carriage for engagement with said mounting of each disk 6 in its cup 4 or 4’. Fig track to lock the carriage at any desired posi ure 3 illustrates the adaptation of the ‘rollers tion. to another track, shown in broken lines, of the 5. In a roller carriage for azimuthal gun same width but different radius. In the posi pointing structures wherein an orbicular track tion shown, the rollers are at the common tan gents and lined up on the common radius. In 35 is included and superstructure mounted to travel thereon, a carriage frame substantially bow other positions, the roller center line is radial shaped in plan and having trucks mounted at of the particular track. its respective end portions adapted to rotate The minimum diameter of circular track on about vertical axes, said trucks having rollers which the device can operate is the center dis to engage a horizontal surface of said track and tance between pins 9 in opposite ends of the having opposed rollers to engage respective frame or body 2. On such a track the device sides of the track, the convex portion of said rotates substantially within this distance as a bowed frame being projected away from the diameter, and the bearing 16 describes a com track at its inner side, said frame located prin paratively small circle whose radius is the dis cipally below the top of the track and above tance from the center of the bearing perpen the bottom of the track, and a load carrying dicularly to the line of centers between pins 9 at vertical axis pivot bearing on the bowed part opposite ends of the frame. of the carriage intermediately of its length Although a speci?c embodiment of the in~ spaced from a chordal line between the first vention has been disclosed, it is intended that alterations in the particulars of construction I, named vertical axes. 6. The structure of claim 5, wherein track may be made without departing from the scope engaging locking means is mounted at the con of the invention as indicated by the appended claims. ' The term orbicular is used as a general one, and not necessarily limited to a circular form , or perfect ellipse. What I claim is: l. A track roller carriage having spaced por tions adapted for support at spaced positions along a track, a pair of spaced horizontal disks ('11) rotatably mounted in each portion and adapt ed to be positioned respectively at the top and bottom of the track, a pair of horizontal roll 1 cave side of said carriage constructed and ar ranged to lock the carriage to the track, in rigid ?xed load transmitting relation there with. -7. The structure of claim 5, in which said carriage is a substantially horizontal member approximately at the level of the track and bifurcated at each end to extend over and under the track, said trucks being mounted in said furcations respectively. DON D. BRUSH.