US784246A - Rivet-holder. - Google Patents

Description

PATENTED MAR. 7, 1905.

0. F. BOTSFORD.

v RIVET HOLDER.

APPLICATION FILED JUNE 21.1904.

@FV Invetor,

Witys 2 Patented March '7, 1905.

ORVIE F. BOTSFORD, OF I-IAMMERSLEY FORK, PENNSYLVANIA.

RlVET-HOLDER.

SPECIFICATION forming part of Letters Patent No. 784,246, dated March 7, 1905.

Application filed June 21, 1904. Serial No. 213,549. i

To all whom it inf/,7 concern.-

Be it known that I, ORVIE F. BOTSFORD, a citizen of the United States, residing at Hammersley Fork, in the county of Clinton and State of Pennsylvania, have invented a new and useful Rivet-Holder, of which the following is a specification.

This invention relates to devices employed for supporting rivets in position to be headed and known commonly as dolly-bars, and has for its object to simplify and improve such devices and increase their efliciency and usefulness without increase in weight or cost of construction.

WVith these and other objects in view, which will appear as the nature of the invention is better understood, the same consists in cer-v tain novel features of construction, as hereinafter fully described and claimed.

in the accompanying drawings, forming a part of this specification, and in which corresponding parts are denoted by like designating characters, is illustrated the preferred form of the embodiment of the invention capable of carrying the same into practical operation, it being understood that the invention is not necessarily limited thereto, as various changes in the shape, proportions, and general assemblage of the parts may be resorted to without departing from the principle of the invention or sacrificing any of its advantages, and the right is therefore reserved of making all the changes and modifications which fairly fall within the scope of the invention and the claims made therefor.

In the drawings thus employed, Figure 1 is a sectional side elevation of the improved device applied. Fig. 2 is a front elevation of the same, partly in section.

The improved implement comprises a stock formed of spaced side members 10 11, connected at one side by a web 12, preferably integral therewith, the web portion having a plurality of spaced transverse ribs or teeth 13. Pivoted at 14 between the upper ends of the side members 10 11 is a lever member 15, with the terminal of its shorter end knifeedged, as at 16. Slidably disposed in the stock is a bar 17, having at one end a rivet-head engaging cavity 18 and with a plurality ofspaced teeth 19 along one side, corresponding to and adapted to engage the teeth 13 within the stock, as shown in Fig. 1. By this means it will be obvious that the bar may be adjusted longitudinally of the stock to any required extent within the range of the inter-engaging teeth and lirmly united at any desired point by clamping the two parts together. The clamping means employed consists of a clampscrew 20, operating through a plate 21, secured, as by cap-screws 22, to the free edges of the side members 10 11 and bearing against the adjacent face of the bar 17.

By this simple device when a rivet (represented at 23) is to be hold while being headed the bar 17 is adjusted until the point 16 of the lever will engage the nearest stationary portion of the structure in which the rivet is to be securedsuch, for instance, as a portion of a bridge-girder or the like, as at 24c. The cavity 18 is then placed over the head of the rivet and the longer end of the lever 15 drawn toward the same, with the result of causing the bar 17 to be lirmly compressed against the rivet and to hold it solidly until the heading action is completed. By forming the point 16 of the lever member chisel-edged, as shown, the same forms for itself a seat in the opposite portion of the structure 24 and effectually prevents slipping when in action.

The device is preferably formed of steel and may be of an required size, or a series of the bars 17 in graduated sizes may be supplied with one stock, if preferred.

The device may be employed in any locality where rivets are to be held while being headed, but is more particularly adapted for use in bridge and similar work, elevated railways, and in all structural steel or iron work of various kinds and may also be employed in boiler and tank structures and the like.

The device is lightly constructed and easily transportable and provides a convenient means for holding the rivets and preventing the jarring or concussion beingtransmitted to the operatives.

Having thus described the invention, what is claimed is- A rivet-holding device comprising in combination a recessed stock open at one side for in the Wall of the stock, and serving to hold i the teeth of the bar in engagement with those on the stock, and an operating-lever mounted at a point intermediate of its length on said pivot-pin.

In testimony that I claim the foregoing as my oWn I have hereto aflixed my signature in the presence of tWo Witnesses.

ORVIE F. BOTSFORD.

\Nitnesses:

FRANK Bo'rsFoRD, FLORENCE (Jr. HERMAN.

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