US5338A

US5338A - Bolt fob doobs

Info

Publication number: US5338A
Authority: US
Publication date: 1847-10-23
Anticipated expiration: 1864-10-23

Description

WILLIAM WHEELER, 0E TROY, NEW YORK.

BOLT FOR DOORS.

Specification of Letters Patent No. 5,338, dated October 23, 184'?.

To all whom t may concern:

Be itd knoWn that I, WILLIAM WHEELER, of the city of Troy, in the county of Rensselaer and State of NeW York, have invented a neW and useful improvement in the manner of constructing bolts for doors, said bolts being so made as to constitute a new manufacture; and I do hereby declare that the following is a full and exact description` thereof.

Bolts for doors have been made With flat plates of Wrought iron, having staples, or loops riveted in them to receive and guide the sliding bar, or bolt proper, the plate and its loops, or staples, together With4r a stop piece usually consisting of four pieces. In my improved manner of manufacturing bolts one single piece of sheet metal is substituted for the Whole number of pieces heretofore required in the manufacturing of bolts of Wrought metal, irrespective of the sliding bolt itself. There have also been manufactured door bolts of cast iron in Which the plate, and loops, or staples, consisted of one piece, but these bolts are objectionable on account of the brittle nature of the material, and of the Weight of metal required to give to them that strength Without Which they Would be useless; and besides this, they cannot be afforded When brought into market at less than thirty per cent advance upon the price ofthe very superior article of sheet metal manufactured Although I do not make any claim Whatever to the machinery by means of'Which my bolts are manufactured, as this is a mere modification of such as is vWell knoWn to machinists, I Will describe the operation so far as may be useful in guiding the Workman in the most ready mode of procedure.

I take sheet iron or other -malleable plates of metal, and cut it into pieces of suitable length` and Width; for an eight inch bolt these Will be eight inches long, and about fourinches Wide. By means of avsuitable press then perforate these plates in the manner represented in Figure l, of the'accompanying draWing; the holes a, a, being those that are to receive l.the screWs by Which the bolt is to be'attached to the door, and

the H formed opening b, I), that Which is` tok admit the shank of the knob by Which thebolt is to be moved back and forth, and Which opening is also to serve as stops thereto. Theplate is then bent by means of a press and suitable dies into the form represented .in Fig. 2, and subsequently intothat represented in Fig. 8. In performing this last o-perationlan iron bolt a trifle larger than that Which isl to constitute the sliding bolt isinserted along the part Which lis to receive said bolt, and the plate is then nished. One hand can form sixty dozen such plates in a day. The staple Which is to be fastened to the door frame, its made of sheet` Jietal bent in like manner, as shoWn in In' F ig. 5 my improved bolt isshoWn in its ,finished state. i

Having thus fully described thenature of my new manufacture of bolts for. doors, What I claim as neW therein, and desire to secure by Letters Patent, isi The making the Whole of the instrument, With the exception of the sliding bolt itself, and the staple that is to be fastened to the door frame, of one piece of malleable metal,

by bending the` same, and by making a perforation therein to receive, andv to allo-W of the play of the knob, asherein set forth,

WILLIAM WHEELER.