US986399A - Crane or derrick. - Google Patents

Description

A. P. LUNDlN.,

CRANE OR DERRICK.

APPLICATION FILED o0T 1,190B.

Patented M317, 1911.

.3 SHEETS-SHEET 1.

e a INVENTOR By fifcf m ATTORNEY A.'P. LUNDIN.

CRANE OR DERRICK.

APPLICATION FILED 001?.1, 1908.

9 ,399; Patenteamanzwu.

3 SHEETS-SHEET 3.

. w HWETZR A TTORNE Y UNITED STATES PATENT OFFICE.

ANDREAS P. LUNDIN, or NEW YORK, n. Y., ASSIGNOR T0 WELIN DAVIT AND LANE & DE (moor COMPANY, CONSOLIDATED, A conronn'rron or NEW YORK.

CRANE GR DERRICK.

Specification of Letters Patent.

Patented Mar. 7, 1911.

Application filed October 1, 1908. Serial No. 455,746.

To all whom.- it may concern:

' 'Be it known that I, ANDREAS l. LUNDIN, a citizen of the United States, and a resident. of the boroughof lVI-anhattan, city, county, and State of New York, have invented certain new and useful Improvements in Cranes or Derrieks, of which the. following is a specification. I I

My i vention relates to improvements in cranes or derric'ks which perform the operations of lifting and hoisting the load to be moved, and swinging the same around horizontally to the place desired. .It may be utilized in either land or marine work for the handling of cargoes of ships or any other loads.

, In the accompanying drawings, in which similar reference characters designate corresponding parts, 'I have illustrated preferred embodiments of my invention, Figures 1, 2 and 3- illustrating a construction adapted for "comparatively light work, and Figs.- 4 and 5, showing a construction particularly adapted for the handling of heavy loads. In these drawings only manual means for the operation of such devices are illustrated, but it is obvious that the same may beoperated by electric, steam or other suitable power.

Referring to the drawings, Fig. l is a. side elevation of my improve-d crane mounted on a cylindrical pedestal or mast, Fig. 2 is a rear View thereof; Fig. 3 is a detail View of the clutching mechanism and connecting parts shown in Figs. 1 and 2; Fig. l is aside view, partially in section of a crane or derrick embodying my invention; and Fig. is a transverse section on the line 5'5 of Fig. 4, loo-king downwardly, the crane arm and part of the frame being omitted for the purpose of showing the other parts more clearly.

Referring now to Figs. 1, 2 and 3, A indicates'a crane arm, having at its lower end a. toothed segment or sector a. As. shown, a frame B is mounted on'a mast or.- pedestal C, the said frame being provided with a rack b atits lower end. The crane arm is preferably pivoted at (Z to swing vertically and such pivot is suitably guided as by the guide (1. The said crane arm is preferably pivoted to a nut or block (not shown) which is' internally threaded to coact with and travel on the worm T) in substantially the manner shown and described in my former application, Ser. No. 450,605, filed on the pedestal C, which acts as a vertical pivot to permit the frame and with itthe crane and other parts to be rotated thereon. I preferablv employ ball bearings c, c or other suitable anti-friction devices in hubs or collars" E, E and bearing between the same and the mast or pedestal C.

Extending rearwardly from the collar E is a bracket B which supports an operating shaft H journaled in suitable bearings h at one end, its other end being redu'bed and bearing in a bearing provided therefor in the worm shaft D. Loosely mounted on the operating shaft H is a vertical bevel-pinion F engaging with a bevel-gear wheel G fixed to the mast or pedestal C above the hub .o-r collar E. Thinner face of the bevel-pinion F is provided with a counterpart box I having the usual projections and interdental spaces. The rear end of the worm shaft- 1) terminates at the rear of the bearing (Z in a similar counterpart box D also having the usual projections and interdental spaces. Intermediate the counterpartboxes I and D and slidingly secured to the shaft H in any suitable manner is a double clutch or clutch box J, the side or coupling faces of which are provided with projections and interdental spaces corresponding to those of the boxes I and D and adapted to coact therewith.

A lever K pivoted at k to a bridge piece L is adapted to shift the clutch or clutch box Jinto engagement with either counterpart box as desired. A locking rod K coiiperating with notches in 1n the bridge piece L and lever K serves to lock the clutch box J into engagementwith either of the counterpartboxcs or in its neutral position, as shown. The rod K is prov ded with a hand lever 70 adapted upon manipulation to withdraw the locking rod K to permit the lever to be moved. A crankwhcel M is fixed to the operating shaft ll.

During The frame B is pivoted on the mast or A rope drum N is secured to a shaft 72 suitably supported in the frame B, which shaft is operated as shown by the crankwheel N and gears N", N The rope drum N projects at one side of the frame Band carries a rope N running over a pulley I and having at its. free end a hook Q or other suitable securing device.

Theoperation of the device is as follows: \Vhen it is desired to pick up an'object at a distant point and-move it to, another point, the lever is operated to shift the clutch J into engagement with the counterpart box on the rear end of the worm shaft l), and the crank-wheel M is rotated to swing the crane arm outwardly. The rope on the rope drum is then given out and "its end secured to the load to be moved. The rope may then be wound on the drum to lift the load the necessary distance for horizontal swinging or in some instances the mere vertical swinging of the crane arm on its pivot (Z caused by the rotation of the crank wheel in the reverse direction will be sufiicientfor this purpose, If the. point to which it is desired to move the load is to either side or to the rear of the crane arm, the lever K is operated to move the clutch out of bngagement with the. counterpart box on the worm shaft D and into engagement with the counterpart box on the pinion F, and the crank wheel M is operated to swing the crane horizontally to such desired point, the pitch of the thread of the 'worm being sufiicient to hold the crane arm at any desired posit-ion. When such desired point is reached the clutch may be again shifted into engagement with the counterpart box on the Worm shaft and the crank-wheel M operated to lower the load by swinging the crane arm vertically, and lowering away on the rope as may be found necessary or expedient. The load is then released from the rope and such operations continued as required.

Referring now to Figs. 4c and 5, 1 is a crane arm having at its lower end a toothed segment 2. 3 is a. frame mounted as shown to swing horizontally on the balls 5 and rollers 6, operating respectively on the post 7 and base plate 4, the'post 7 acting as a vertical pivot about which the base plate and frame turn. A worm 8 is supported in said frame 3 to have rotary but not longitudinal movement, which worm extends through a threaded nut 9 which is slidably su ported on the rod ,10 also mounted in the frame, and the crane arm is pivoted to the nut 9 as indicated at 11. The crane arm, as shown, is curved forwardly and the pivotal connection isat what I shall term the front side thereof, and it will be observed that withthe pivot 11- as a center, the radii of the segment gradually increases from the rear end to its -front end Said segment is preferably provided with a central As shown the rack inclines downwardly from its rear to its front end and the post upon which the frame swings l1orizontally is located centrally beneath said rack. A crank handle 12 and gears 13 and 14 are provided to rotate the worm which will cause the crane arm to swing vertically as heretofore described. A rope drum 15. is journaled on a shaft, 16 suitably supported in a bracket 17 secured on the plate 4. Any suitable mechanism, such as crank-handle 23 and gears 2-1 and 22 may be provided for the operation. of the rope drum 15. The rope drum carries a rope -18 running over the pulley 19 and provided at its free end with an attaching device 20. The operation of this device is substantially the same as that illustrated in Figs. 1. 2 and 3. A lever X, shown as partially broken away, may be employed to swing the frame horizontally. or mechanism similar to that Shown in Figs. 1, 2 and 8 may be employed, so that the horizontal swinging may be ELCL Dmplished by the same shaft and crank which actuates the rope drum or the vertical swinging of the crane.

I claim:

1, In a crane or derrick, a frame adapted to rotate about a vertical pivot, a crane arm having a segment at its lower end supported in said frame, a horizontal pivot about which the crane arm may turn in a vertical plane. and a rack supported in said frame on which said segment may roll, substantially as described.

2. In a crane or derrick, a horizontally swinging frame, a crane arm supported in said frame to swing vertically and provided at its lower end witha segment, a rack supported in said frame on which the segment may roll, a rope drum supported in said frame, means for swinging the frame horizontally, means for swinging the crane arm vertically, and means for operating the rope drum.

3.111 a crane or'derrick, a frame adapted to rotate about a fixed vertical pivot, a crane arm having a segment at its lower end supported in said frame, a pivot about which the crane arm may turn in a vertical plane,

and a rack supported in said frame on which said segment may roll, substantially as described.

4. Ina crane or derrick, a frame adapted to rotate about a vertical pivot, a crane arm having a segment at its lower end supported in said frame, .a hgrizontal pivot about which the crane arm may turn in a vertical plane, a rack supported in said frame on which said segment may roll, and interchangeable actuating means adapted'to Cir substantially as described.

aegeee swing the crane arm or frame alternately,

5.111 a craneor derriclna frame adapted to rotate about a vertical pivot, a crane arm supported 1n said frame and PICWldGCl at its lower end with. a segmenthavmg its radii gradually increasing from its rear to its front end, a horizontal pivot about which the crane arm may turn in a vertical plane, and a rack sup-ported in said frame and inclining downwardly from its rear to its front end.

6. In a crane orderrick, a frame adapted to rotate about a vertical pivot, a crane arm having a curved snrface at its lower end supported to swing vertically in said frame; a base supported by said; frame on which said curved surface rolls, means for preventing said curved surface from slipping onsaid base, means for swinging the frame horizontally and means for swinging the crane arm vertically.

7. In a crane arm or derrick, a frame adapted to rotate about a fixed vertical pivot, a crane arm having acurved surface Copies of this natent may he obtained for at its. lower end supported to swing vertically in said frame, a base in said frame on which said curved surface rolls, means for preventing said curved surface from s lip ping on said base, a Worm shaft for swinging said crane arm vertically journaled in the frame and having a counter art clutchbox at its rear end; a pinion ast on said vertical pivot, an operating shaft journaled .in the frame-to rotate independently of said worm shaft, a pinion loosely mounted on said shaft, meshing with the pinion fast on the vertical pivot and having a counterpart box, a clutch-box intermediate 'rsaid counterpart boxes and means for shifting the same alternately into engagement therewith. In witness whereof, I have signed my name to the foregoing specification in the presence'of two subscribing Witnesses.

ANDREAS 'P. LUNDIN.

Witnesses:

Jos. F. OBR'IE ANNA S. BROMBERG.

five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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