US1803267A - Mouthpiece for wood wind instrument - Google Patents

Description

April 28, 1931. A. J. M CLOSKEY REAMER FOR DRILL BITS Filed July 26, 1929 2 Sheetq-Sheet 2 Inventor flffiar (fl 670.177

fllwmm I Attbmey Patented Apr. 28, 1931 PATENT OFFICE ARTHUR J. iacc nosxlw, or MARAGAIIBO, VENEZUELA REAMER FOR DRILL .BI'IS Application filed 'nu ae,

This invention relates to drilling bits for well drilling, and more particularly, rotary drilling bits for use in drilling and developing deep oil wells, the primary object of the invention being to provide a reamer or follower for the drill bit, the purpose of the reamer being to maintain in gauge at all times the hole being drilled.

Another very important object of this invention is to provide a reamer adaptedto be associated with the drilling apparatus so as to constiute a follower for the drill bit which is very simple in construction, strong, durable, and which will not only aid in maintaining a straight hole, but which will also save wear and tearon the bit, save considerable time in going in and coming out of the hole, the construction of the reamer being such as to render the same inexpensive to install and use, andotherwisewell adapted for the purpose designed.

Other objects and advantages of this invention will become apparent during a study of the following description, taken in connection with the accompanying drawings,

wherein:

Figure 1 is an elevational view of a rotary well drilling bit showing the same within the hole fully illustrating the application of my invention therewith.

Figure 2 is a view partly in section and partly in elevation of my improved reamer.

Figure 3 is a plan view of the collar or follower body which constitutes the cutting element of my reamer.

Figure 4 is a fragmentary elevation of one end of the tubular connector forming a part of this invention.

Figure 5 is an elevational view of a drill bit of ordinary construction with my invention being applied thereto, illustrative of a bit and a hole formed by the bit which has become crooked, fully illustrating the comparison between a hole drilled with a bit having my invention applied thereto and a bit minus a reamer.

With reference more in detail to the drawings, wherein like numerals indicate similar parts throughout the several views, it will be seen that I have designated my improved cases it is necessary to junk the hole, or to 1929. Serial No. 381,257.

reamer generally by the reference character 5. Before proceeding with a detailed description of theconstruction of my devioe,'there is the fact that the prime requisite in oil well drilling is to put down a well with least expense and time. When in drilling a well the hole becomes crooked, the drill pipe is caused to bend and follow the lead of the hole, and in many cases breaks off, causing what is known as a fishing operation.

As is well known, when a drill collar, bit, or other material breaks and lodges in the hole, it is necessary to draw the apparatus out of the hole, and to employ'special tools 65 commonly known as fishing tools to fish out or extract such features as may have been broken off. If they are unable to extract these broken pieces, then in many start upon anew one. Such operations must of course entail a great deal of time as well as being expensive. It'is to overcome the danger which makes such operations necessary that I have devised and especially constructed'this reamer to be incorporated within the drilling apparatus so as to follow the drill bit, the operation of which will be manifest as the description proceeds.

Attention is first invited to Figure 5, wherein is illustrated a drillhole C which hole has become curved or crooked as shown, thus causing the drilling apparatus to assume the curved or crooked position as illustrated. The usual apparatus consisting of the drillpipe 15, the drill collar 16, 17 designating the sleeve connection between the collar and the pipe and 18 the ordinary fishtail-drill bit, the shank portion of which is connected to the opposite end of the drill collar 16v as shown. As before intimated, this structure is conventional and forms no salient feature of this invention.

As illustrated in this figure, the collar 16 has become bentdue to the crooked hole being drilled, and as will be readily appreciated, continual operation of'the drill apparatus could but only terminate in the collar being broken or else becoming permanently bent, thus renderingthe device useless.

April 28, 1931- F. MEYERET AL 7 1,803,263

MOUTHPIECE FOR WOOD WIND INSTRUMENT Filed March 13, 1930 0271a Lav-1f FEWKMEYM mvsu'rons

Images