US939921A - Lock-bolt. - Google Patents

Description

L. & D. MOEILER.

Loox BOLT.

APPLIUAfIIN TILED JULY 17, 190B.

939,921 Patented No,v.9,19o9.

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uiTnn sTATns PATENT onirica LAWRENCE MOELLER AND DANIEL MOELLER, OF ANDREW, IOWA; SAID LAWRENCE IVIOELLER ASSIGNOR, TO SAID DANIEL MOELLER.

LOCK-BOLT.

To all whom it may concern:

Bc it known that we, Lawnnnon MonLLnr. and DANIEL MonLLnn, citizens of the United States, residing at Andrew, in the county of Jackson, State of Iowa, have invented certain new and useful Improvements in Lock- Bolts; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the saine.

rllhis invention relates to lock bolts, coupling pins and similar devices, and has for one of its objects to simplify and improve the construction and increase the efficiency and utility of devices of this character.

Another object of the invention is to provide a device of this character which may be adapted to the various purposes for which loclr bolts are employed, and'whereby two objects may be quickly coupled and uncoupled without detaching or destroying any of the parts of the device.

lith these and other objects in view the invention consists in a tubular sleeve having a lateral head at one end and adapted to be inserted through the parts of the structure to be united, a headed bolt extending through the tubular sleeve and provided with a longitudinal bore, a spring actuated arm swinging in the bolt, and an operating mechanism extending through the bore of the bolt and actuated from the enlarged end of the same.

rThe invention further consists in certain novel features of construction as hereafter shown and described and then specifically pointed out in the claims, and in the drawings illustrating the preferred embodiment of the invention, Figure 1 is a side elevation of the improved device. Fig. 2 is a plan View of the same. Fig. 3 is a sectional view on the line SH3 of Fig. 1. Fig. t is a transverse section enlarged on the line 4*4 of Fig. 3, looking toward the lower end of the bolt.

The improved device comprises a sleeve 10 having a lateral head 11 and adapted to be inserted through the structure which is to be connected by the bolt, and for the purpose of illustration two members 12-13 are shown thus coupled, the head 11 of the sleeve bearing upon the member 12.

Extending through the tubular member 10 is a bolt 14 having a longitudinal bore 15 Speccaton of Letters Patent.

Application led July 17, 1908.

Serial No. 444,081.

and a lateral head 16, the head of the bolt bearing upon the head ofthe sleeve as shown.

Formed laterally through the bolt 1st near the end opposite to the head 16 is a transverse slot 17, and pivoted at 18 within this slot is an arm 19 having a lateral projection 2O at its free end, the lateral projection adapted to extend beyond the bolt and bearing against the member 13 as sh wn in F ig. 8 when' the device is in operative or holding posit-ion. The arm 19 is provided with a spring which is preferably formed by coiling a wire Q1 around the pivot 18 and extending one end for engagement with the body of the bolt at 22 and with the other end engaging the arm 19 at 23. By this arrangement the spring operates to maintain the arm yieldably in its projected position, and thus lock the bolt within the sleeve, and prevent the' separation of the parts 12-13.

Extending through the bore of the bolt 141 is a. pull rod 24 having an eye 2:3 at one end through which a pin 26 extends, the pin also extending through a small trip lever 27 fitting in a transverse cam recess or seat 28 in the head 16 of the bolt. The end of the rod 24: opposite to the eye 25 is connected to the arm 19 at 29. The rod 241, cam lever 27 and the arm 19 will be so arranged that when the cam lever is seated in the recess 28 the rod will be relaxed and permit the spring 21 to hold the arm in its distended position or with the lateral portion 2O which projects from the bolt against the member 13, and so long as the parts remain in these rela- -tive positions, the bolt will be firmly locked in position and hold the parts 12-13 united. The cam device is thus supported between the walls of the recess and protected and concealed thereby when in withdrawn position. If it is desired to release the bolt it is only necessary to elevate the cam Q7 to cause its shorter end 30 to bear against the bottom of the recess 28 and move the rod 2% longitudinally'of the bolt and thus move the arm 19 against the spring 21 and withdraw the portion 2O within the bolt, this action of the cam device retaining the member 27 in its withdrawn position. This action of the cam device releases the bolt and enables it to be withdrawn, this action likewise releasing t-he sleeve 10 and enabling it to also be withdrawn. The sleeve 10 and the associated parts may be of any desired size or Fateirted Nov. 9, 1999.

strength, and of any required length to adapt the device to the varying' purposes for which it may be employed.

The improved device may be employed as an ordinary linch pin for connecting the reach member in Wagons, as a coupling pin for clevises of various forms, and for any other purpose to which devices of this kind are applicable.

The improved device may be inexpensively manufactured and adapted to the various purposes for Which lock bolts are employed and it is not desired therefore to limit the invent-ion to any specific purpose for which it maybe employed, and it is also understood that modifications in the construction of the parts may be made Within the scope of the appended claims Without departing from the principle of the invention or sacriicing any of its advantages.

What is claimed, is

l. A device of the class described comprising a bolt having a longitudinal bore and With a head at one end and a transverse cavity at the other end, an arm adapted to swing in said cavity and to extend beyond the bolt and to be Withdrawn into the cavity, apull rod extending through the bore of the bolt and connected at one end to the arm, a cam device pivotally connected to the rod at the other end and bearing by one side upon the head of the bolt When the arm is in extended position, and bearing endivise upon the bolt head when the arm is in Withdrawn position.

2. A device of the class described comprising a bolt having a longitudinal bore and with a transverse cavity at one end and a head at the other end, said head having a transverse recess communicating With the bore of the bolt, an arm adapted to swing in said cavity and to extend beyond the bolt and to be Withdrawn into the cavity, a pull rod extending through the bore of the bolt and connected at one end to the arm, a cam device pivotally connected to the rod at the other end and bearing by one side upon the head of the bolt and concealed Within the recess when the arm is in extended position, and bearing endwise against the bolt head and Within the recess When the arm is in uffithdrawn position.

In testimony whereof, We aiix our signatures in presence of two Witnesses.

LAVRENCE MOELLER. DANIEL MOELLER.

Titnesses CHRIS. BACH, @HARLEY KNARR.

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