None of the fixtures were threaded. The bushing and bushing seat were tapered to provide a better joining of the two. A comparison with the old tenor tops is interesting. The shorter tenors (1 & 2) with the rounded cord beads are believed to be from the east coast of Canada but without any documented history. The tuning chambers are .622 inches by 3.25 inches deep. The thru-bore is .440 inches and the bushing bore is .545 inches. The bell is 1.000 inches wide by 1.383 inches deep. Beading is .227 and combing is 8 teeth and is 24 TPI. The overall length of the section is 8.1874 inches.
The bass drone, from stock to top, does not match the tenor pieces at all. The bass bottom is 11.500 inches long with a .400 thru-bore. There is damage to the top of the pin, which may have been longer at one time. The mid section is 11.750 inches long. The tuning chamber is .690 X 3 inches deep and the small bore is huge at .500 inches. The bass top is 11.5 inches long (292 mm). The tuning chamber is .730 X 3 inches deep. The small bore is .600 and the bushing bore is .670 inches. The bell is 1.175 X 1.175 inches. Beading is .25 inches and combing is 10 teeth at 28 TPI.
Of particular interest is the proportion of one section to the other. As you can see, the bass mid-section is the longest and the bass bottom being the shortest. In Hugh Cheape’s MacDonald bagpipe (some measurements are listed below) the bass bottom was shortest, with the longest being the bass top-section at 317 mm.
Mr. Cheape also indicates that the Donald MacDonald bass bell is 56 mm in diameter (compared to 46 mm for the Morrison bagpipe) with a bushing bore of “almost 20 mm” compared to the Morrison bagpipe bushing of 17 mm.
The comparison bass top, which matches the comparison tenors, is 11.125 inches long. The tuning chamber is .670 X 3.5 inches deep. The thru-bore is .525 and the bushing bore is .635 inches. The bell is 1.000 X 1.130 inches deep.
Again, as a matter of comparison, Hugh Cheape indicated in The Piping Times (Vol. 57 No. 2) regarding a Donald MacDonald bagpipe in his care and custody; “…the length of the Donald MacDonald top-joint is 317 mm…” By comparison, the bass bottom to the right, which I believe to be older, is a full 12 inches (304 mm) from end to end. You can see the obvious differences. Beading on the comparison bass bottom is .166 inches and combing is 7 teeth at 28 TPI. The bore is .345 inches.
Again, Hugh Cheape writes of his Donald MacDonald bagpipe; “A critical detail should be highlighted in the much shorter bottom-joint of the drone at 277 mm.” Mr. Cheap writes further that “the reed-seat is relatively large at just over 11 mm.” The reed-seats on both of the bottom sections pictured herein also measure just over 11 mm.
The stocks match the drones. The bass is 6.250 inches long and the bore is .770 at the bottom, which is probably a truer measurement. The longer tenor stock is 5.3125 inches long while the other is 4.6875 inches long. The bore on the longer stock is .740 while the bore on the shorter stock is .780 inches. The chanter stock is 3.375 inches long X .780 and the bottom has been crudely enlarged. The blowpipe stock is 2.700 inches long X .770 inches. The combs on the bass are 10 teeth, the tenors are 6 teeth, 9 teeth on the chanter stock and 6 on the blowpipe stock. I believe that the tenor and blowpipe stocks are original to the set.