Rail-sawing machine

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  • Publication Date: September 03, 1889
  • Publication Number: US-410298-A

Abstract

Claims

(No Model.) B. 0. SMITH. RAIL SAWING MACHINE. I 1 No. 410,298. Patented Sept. 3, 1889. WITNESSESi i INVENTOR afiw 64/44 022 QN{%$NZ (MMM- 7 5. 7%: M BY 75) MM ATTORNEY UNITED STATES PATENT OFFICE, EDWARD 0. SMITH, OF BROOKLYN, NEW YORK, ASSIGNOR TO THE SMITH PORTABLE RAIL SAW COMPANY, OF NEW JERSEY. RAI LP'SAWI NG MACH l N E. SPECIFICATION forming part of Letters Patent No. 410,298, dated September 3, 1889, Application filed June 27, 1888. serial No. 278,354. (No model.) a To all whom it may concern.- Be it known that I, EDWARD C. SMITH, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Rail-Sawing Machines, of which the following is afull, clear, and exact specification, reference being had to the drawings accompanying and forming a part of the IO same. My invention relates to an improvement in machines for cutting off railway rails orbars; and the purpose of my present improvement is to provide a simple and portable machine IS in which the cutting-saw is so mounted and connected with the frame as to be given a free movement to and fro in ahorizontal direct-ion across the rail to be cut This is clearly illustrated in the drawings accompanying this specificatiomin whichv Figure 1 is aperspective view of a machine embodying my improved features; and Fig. 2 is afragmentary sectional view of the sliding carriage and saw-carrying frame, showing .25 their connections. Referring-to Fig. 1, let or represent an elongated rectangular frame provided on its lower end with the j'awsb 1;, one of which I) is shaped to form a bed or rest for the rail 0, which is firmly clamped thereto by means of a threaded bolt d, working through an opening in the other jaw or jaws 1). Within the main frame a is fitted a car riage e, which slides up and down on ways 5 formed by bolting on each side of the main frame a traverse-bar f. The movement of the carriage e is effected through a threaded shaft h, which is journaled in suitable bearings in the carriage and works through a threaded opening in the upper part of the "main frame a. A crank or hand-wheel'i is provided on the projecting end of the shaft for operating it. To the upper part of this sliding carriage e is pivoted a V-shaped frame j, having upwardly and outwardly extending arms k k, terminating in sockets, into which are inserted handles or levers Z Z, bymeans of which an oscillating movement may be given to the frame 3'. To the lower end of this frame j is hung another frame g, which latter frame is made to carry a saw-blade 0. The oscillating frame j and saw-frame g are so connected that when the former is operated by moving up and down the levers Z Zthe saw-frame will be moved with it and will carry the cuttingsaw back and forth over the rail. On the upper part of the frame g is provided a pin 19, which projects through an elongated slot q in the frame j to permit the saw-frame to have a free and limited movement across the rail to be out To insure a steady and uniform movement of the saw-frame, it is made to travel on guideways formed on the sliding carriage a. (See Fig. 2.) On the sliding carriage is provideda projection or lug 1', which fits into a correspondingly-shaped recess on the saw-frame g. The carriage e and its saw-carrying frame are fed to the rail by mechanism operated through the levers ZZ. On the screw-shaft h is mounted a ratchet or toothed wheel, and on the said shaft is also j ournaled an arm 25, which extends forward through an opening in the sliding carriage e and carries on its inner end a spring-actuated pawl adapted to mesh with the teeth of the ratchet and engage the same to rotate the shaft it one step at a time while the arm moves in one direction, and to snap past said teeth when the arm is moved in. the opposite direction. This armt is given its backward and forward movement by means of an upwardly-projecting lug a, attached to its end, which is made to engage in a notch in the frame j, so that as the said frame is moved to and fro by the operation of the levers ZZ it will carry with it the swinging end of the arm t. After the cut is completed the sliding carriage is raised by turning the handwheel 2' on the screw-shaft h. I do not intend to confine myself to the 93 particular manner here specified of forming the horizontal guideway 011 the carriage for the saw-frame to work in, as I may prefer to use for this purpose one or two traversebars suitably arranged on the movable car- 95 riage and adapt the saw-frame to slide upon or between said bars orl'may reverse the position of the lug and recess here shown, as oocasion may require. What I claim as new, and desire to secureby Letters Patent, is 1. In a rail-sawing machine, the combina tion, with a supporting-frame having a slidin g carriage, of an oscillating frame connected to said carriage carrying a saw adapted to have a horizontal movement, and suitable mechanism for imparting a feeding motion to said saw, as set forth. 2. In a rail-sawing machine, the combination, With the stationary frame supporting a movable carriage and means for raising and lowering said carriage, of an oscillating frame pivoted to said carriage and having a pin-andslot connection with a saw-frame arranged to move horizontally in Ways formed on said sliding carriage, as set forth. 3. In a rail-sawing machine, the combina-

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