US643612A - Door-catch. - Google Patents

Description

No. 643,6I2.

Patented Fb. l3, I900. m. J. THUESTAD.

D O 0 R C A T G H (Application filed Aug. 16; 1899.)

(No Model.)

[N VEN TOR B Y a A TTORNE Y.

UNITED STATES 'MORTHEN .I. TIIUESTAD, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO PATENT OFFICE.

ENDRE MATIAS LIND, OF SAME PLACE.

DOOR-CATCH.

SPECIFICATION forming part of Letters Patent No. 643,612, dated February 13, 1906.

Application filed August 16, 1 899.

To all whom it may concern:

Be it known that I, MORTHEN J. THUE- STAD, a citizen of Norway, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Door- Catches, of which the following is a specification.

My invention relates to an improved doorcatch, the object of my invention being to provide a device of this character which will" be especially suited for the doors of steamers or other vessels, and in particular to provide a door-catch in which the door-hook shall be shielded when not in use, so as to avoid injury from the sharp point thereof coming in contact with persons passing near the door, and one which will prevent rattling of the door when so held by said catch.

My invention therefore resides in the novel construction, combination, and arrangementof parts for the above ends hereinafter fully specified, and particularly pointed out in the claim.

In the accompanying drawings, Figure 1 is a top view of my improved catch, the door and wall being shown in broken-away section. Fig. 2 is a side elevation of the device in operation. Fig. 3 is a horizontal section thereof. Fig. 4 is a vertical section. Fig. 5 is an end view. Fig. 6 is a side elevation of the catch proper, and Fig. 7 is a vertical section thereof.

I represent my improved catch secured to a door 2 by means of screws 3 through the circular flange 4 at the base of the catch. From said flange extends horizontally outward a short tube 5, and in said tube is contained a hook whose shank 6 has a pivot-hole alined with two holes 7 in opposite sides of the tube 5, and through said holes passes a pivot-bolt 8. Thus said shank rocks vertically on said pivot. The shank 6 has a forked tail 9, which is engaged by a pin 10, said pin being cut out on each side a short distance above its lower end, leaving a Web 11 passing through said fork, so that a vertical movement of the pin in either direction rocks the hook on its pivot. Said pin extends upward through a hole in the tube 5 and carries on its upper end a suit- Serial No. 727,441. (No model.)

able head 12, and between said head and the outer surface of the tube 5 is interposed a compressedspiralspring22. Saidspringnormally raises the tail of the shank 6, and therefore normally depresses the hook 13 of said shank. Cooperating with said hook isaloop 14, formed by a U-shaped piece of metal secured by screws 15 to the wall 16, against which the door is to be held open, and when the door is swung open the inclined front face 17 of said hook engages the front of said loop and is raised thereby against the pressure of the spring 22 until the hook passes over said loop and is held thereby. Pressure upon the head 12'of the pin 10 will raise the hook and free the catch.

WVhen the door is closed, the hook is not in use, and in order to prevent injury to persons or clothing from the point of the hook in this position there is provided acylindrical sleeve 18, sliding upon the tube 5 and having its outer end 19 closed except foravertically-elongated slot 20, through which the hook 13 passes. A compressed spiral spring 21, interposed between the outer end of the tube 5 and the inner surface ofthe end 19 ofthe sleeve, serves to normally extend the sleeve from the tube, and the sleeve is sufficiently extended normally to completely shield the hook l3 and prevent injury therefrom. Slots 23, cut in the sides of the sleeve and through which the pivot -bolt 8 passes, limit this movement of the sleeve. When the door is swung wide open, the loop 14 first engages the end 19 of the sleeve and pushes it inward on the tube 5, thereby exposing the point of the hook 13, and the continued movement of the door raises said hook and causes it to engage theloop in the manner already explained.

The sleeve 18 and spring 21 perform two useful offices or f unctions-first, they prevent rattling of the hook and loop against each other, and, secondly, they shield the front of the hook when not in use and prevent accidental injury or damage therefrom.

I claim- The combination of a catch on a door comprising a tube 5, a hook having a horizontal pivot in said tube, and having a tail, a springactuated vertically-reciprocating pin engaglo the sleeve, and a horizontal U-shaped loop on the opposite wall which said hook engages, substantially as described.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses.

M. J. TIIUESTAD.

Witnesses:

FRANCIS M. WRIGHT, CHAS. W. SMYTH.

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