US 1326586 A
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Description (OCR text may contain errors)
ERICK 0. FELLROTI-I, OF WES'IBY, MONTANA.
Specification of Letters Patent.
Patented Dec. 30, 1.919..
Application filed February 21, 1919. Serial No. 273,448.
1 b all whom it may concern:
Be it known that I, Enron U. lfnLLRo'rH, a citizen of the United States, resident of il estby, county of Sheridan, State of Monta 11a, have invented certain newand useful In'iprovements in Door-Fastening Means, of which the following a specification.
My invention relates to a means for fastening a sliding door, such as is used in stables, warehouses, garages and the like.
The object of the invention is to provide a means for closing and drawing the door snugly to its seat on the door casing in prac tically one operation and excluding the entrance of dust or air around the door.
A further and particular object is to pro vide a door closing means which will have no parts projecting into the opening when the door is partially or wholly open and thereby all danger of catching on theharness of draft animals or on parts of the machines passing through the door will be entirely eliminated.
The invention consists generally in various constructions and combinations, all as hereinafter described and particularly pointed out in the claims.
In the accompanying drawings forming part of this specification,
Figure 1 is a front view of sliding door, with my improved fastening device applied thereto,
Fig. 2 is a sectional view on the line 22 of Fig. 1,
, Fig. 3 is a detail sectional view, showing the different positions assumed by the parts in fastening the door,
Fig. 4 is a horizontal sectional view on the line 4 4 of Fig. 3.
In the drawing, 2 represents a door opening, having a suitable frame 8, and 4; is a slide door having hangers 5 and wheels 6 to run on a track 7 above the door opening, as usual in doors of this type. The usual guide 8 is provided at the bottom of the door.
When a door of this kind is closed and secured by a hook or similar means, there is no provision for drawing the door snugly to its seat on the door frame. I therefore mount a bolt 9 to slide in a socket 10* in the door and having an angular extension 11 that is adapted to engage a socket 12 formed in a plate 13 that is secured to the door frame 3. The plate is mounted within a re cess in the door frame and there will be no projections extending into the door opening to catch on the harness of a draft animal or on a machine or other article which may be passing through the door. A. spring 1% mounted on the bolt 9 normally tends to hold the angular extension 11 against the inner face of the door and the tension of this spring may be regulated by the adjustment of the lock nuts 15 on the threaded portion of the bolt. 16 is a block slidable on the bolt and positioned between the nut 15 and the outer end of the spring and on this block a cam lever 17 is pivoted so that when the bolt is pushed in to the dotted line position shown in Fig. 4: to engage the socket 12, the cam lever will contact with a plate 18 secured to the door and by turning the lever down to the position indicated in Fig. 2, an outward pull will be exerted on the bolt, thereby forcing the door snugly against its seat on the frame. To release the door, the cam lever is moved to its released position, the bolt pushed in suiiiciently to disengage it from the socket 12 and then the door may be opened.
When the cam lever is in its released position, the tension of the spring; will force the bolt outwardly and direct the inner end of the bolt against the inner plate and hold the parts in position for use. The plates 18 and 19 are preferably of metal and form bearings for the sliding bolt 9.
I prefer to stamp the cam lever out of sheet metal and form an eye 21 therein to receive a staple 22 therein mounted on the door. A padlock 23 is then inserted into the staple and the cam lever and door securely locked together and it will thereby be impossible to open the door until the cam lever is released.
I claim as my invention:
1. The combination, with a door and its frame, of a bolt slidably mounted in the door and having an angular extension at its inner end. a plate mounted on the door frame and having a socket therein to receive said eX- tension. a cam lever mounted upon said bolt on the outer side of the door and a compression spring interposed between said cam lever and the door for withdrawing said bolt when released from said socket.
2. The combination, with a sliding door. of a bolt mounted transversely therein and projecting on both sides of the door, the inner end of said bolt having a hooked part, a plate mounted in the door frame and having means for engagement with the hook on said bolt, and a cam lever carried by the outer end of said bolt adapted to contact with the outer face of the door for drawing the door and frame together.
3. The combination, with a sliding door and its frame, of a bolt mounted transversely in the door to slide therein and projecting on opposite sides thereof, a cam leverslidable on said bolt for engagement with the outer face of the door to exert an outward 1111 on the bolt, and means at the inner enf of the bolt for looking it on the door frame to clamp the door against said frame when said cam lever is operated.
l. The combination, with a sliding door, of a bolt mounted transversely therein and projecting on both sides of the door, the inner end of said bolt having means for enagement with the dOOr frame when the door is closed, a block slidably mounted on the outer end of the bolt, a cam lever carried by said block, a spring interposed between said block and the door, and means for adjusting said block on said bolt against the tension of said spring.
5. The combination, with a door, of a bolt mounted transversely therein and projeoting on both sides of the door, the inner end of the bolt having means for engagement with the door frame, a cam lever slidably mounted on the outer end of the bolt for engagement with the outer face of the door for drawing the door and door frame snugly together, and means for adjusting said cam lever on said bolt.
6. The combination, with a door and its frame, of a bolt mounted transversely in the door to slide therein and projecting on opposite sides thereof, a cam lever slidable on said bolt for engagement with the outer face of the door to exert an outward pull on the bolt, said bolt having means at its inner end to engage the door frame and clamp the door against said frame when the cam lever is operated, and a locking device for engaging said cam lever and looking it in its closed position.
In witness whereof, I have hereunto set my'hand this 5th day of Feb, 1919.
ERICK O. FELLROTH.
PETER MJLLER, ELIF G. ANDERSEN.