#71 Router plane
Jonathan Peck - N.Y.
>Also from Patrick's B&G
#71 Router plane, 7 1/2"L (7 5/8", 1962 on), various widths, 2 5/8lbs, 1885-1973.
And here you thought routers are the stuff of the modern workshop. Nope! They've been around much longer than the abNORMal kind has, but these kind ain't the 'lectrical kind. These kind are pushed or pulled, and are suited for smoothing the bottom of a groove, mortice, or whatever, which is lower than the general surface of the piece being worked. They were very popular tools, especially with patternmakers and stairbuilders. Every shop should have one. Stanley's minister of propaganda, in a leaflet distributed with the tool, stated:
"For surfacing the bottom of grooves or other depressions parallel to the surface of the work. There are many applications in pattern making cabinet work and in fact almost all kinds of woodworking that call for these tools. They are particularly practical for routing dadoes for shelves, stair stringers or where pieces of hardware are to be recessed into the surface or edge of a board, such as large hinges or lock strikes, etc. It is not possible to show all these, but the user will soon discover places where these tools will prove their value."
They are sorta D-shaped, with two turned hardwood knobs (beech or maple) on each end. The knobs flank an adjustable L-shaped cutter, which protrudes through a large, circular opening in the plane's sole. A grooved post receives the cutter, which is locked into position by a thumb screw activated clamping collar. This collar, as well as the cutters, are very easy to lose, and these planes are often found minus them. The grooved post is also grooved on its backside so that the cutter can be reversed, making the plane function in a bull nose fashion.
Originally, it came with only two cutters - 1/4"W and 1/2"W. These two cutters are ground to a straight edge, so that they operate just like a paring chisel. They weren't well suited for smoothing, due to tearout, so a third, patented cutter was added in 1917. This one is V-shaped.to make it function like a plough (the farmer's kind) as it cuts the wood. The earliest version of this cutter is a one-piece construction, and can sometimes be found with the patent date stamped in its shank. Because the V cutter has two bevels on it, it proved difficult to grind and hone. Subsequently, the cutter became a two-piece design so that the end be removed for sharpening. Late production models of this plane have all three of their cutters graduated in 1/16ths along their shanks for fine adjusting.
The plane underwent many modifications during its production by Stanley. The first of which was arching the portion of the sole, forward of the cutter, into an open throat configuration. This was done ca. 1890. Then, probably during the mid-1890's, a mechanism to close the throat's opening was added so that the plane could work narrow surfaces, like grooving the edge of a board, to add lateral stability to the tool. This mechanism, or 'shoe' as Stanley called it, attaches to the round depth gauge rod that slips through the arched area of the main casting and 'closes' the throat to give more of a bearing surface, or sole, on the tool. It took Stanley a few designs to get this right as the first design of the shoe has a separate cutter collar casting that projects forward to carry the shoe and the depth gauge rod. Stanley soon redesigned this to the simpler method most are familir with today; the newer design was less costly to manufacture and much easier to use. The shoe's use is very limited for most work, but functions best as a depth stop, which is explained next.
At the same time the shoe was added, a round depth gauge rod was made part of the shoe clamping assembly. This rod controls the tool's depth of cut as the cutter is adjusted deeper. It permits consistency from cut to cut, which would be difficult to achieve were the rod not provided. The rod has a smaller diameter portion on one end. The use of the stop might not be intuitive to most, but it's very easy to use and rather clever in its simple operation. The rod is slipped through the round opening for it, atop the arched portion of the main casting, so that the smaller diameter is downward. The tshoe is then slipped onto the rod (over the large diameter) so that the shoe is above the arched portion of the main casting. The rod is then positioned to the desired depth (relative to the sole of the main casting) and the screw of the shoe is tightened onto the rod. The rod is left free to move up/down through the arched portion of the main casting - do not tighten the screw to lock it in place. As the cuts are made, the rod will slip down toward the casting until the shoe stops it from moving downward anymore. Once the shoe makes contact with the arched portion of the main casting, the desired depth has been reached. Pretty simple, eh?
Next, in 1902, a vernier cutter adjustment mechanism was added to the grooved post; the cutters were redesigned to have a notch at their top to engage a wheel, which traverses a threaded rod to regulate the cutter's depth. This vernier adjustment made it possible to make fine advances in the cutter's set than is normally made when done manually. The feature makes it possible to advance the cutter in successive fine increments as the recess is cut deeper and deeper; i.e., instead of hacking out the recess with just a few settings of the iron, you rout the area with the cutter in a fine set, loosen the blade clamping collar, turn the vernier wheel a bit, clamp the cutter firmly, then rout the area. This procedure is repeated over and over until the desired depth is reached.
In 1909, countersunk (from above) screw holes, through the sole, were added to allow wood bottoms or fences to be attached. This allows the tools to work recesses that are larger than the tool is wide. In other words, the tool can be made physically 'larger' by attaching a wooden sole to it.
In the same year, 1909, the shoe to close the throat was redesigned and repositioned so that it became part of the arched portion of the main casting. During this redesign, the depth gauge rod was repositioned, and in fact, the shoe attaches directly to the rod.
An adjustable fence, which is screwed to the sole, was added in 1939. It is fastened to the underside of the tool's sole by means of a single screw and washer, both of which are often missing. Two small screw holes that flank a larger screw hole (on either side of the cutter) indicate whether your version originally came equipped with the fence. The sole is also grooved to receive the fence. The fence is used for the times when the cutter is run parallel to an edge. The fence has a straight edge for straight work, and the other side is curved to allow the tool to follow either concave or convex edges.
As is the case with many Stanley planes, the first models were japanned. The earlier models have maple handles that are finished with a clear varnish. Toward the close of the last century, they became nickel plated. This plane follows that same course. The later models have hardwood knobs that are painted black, while even later models have composition or plastic knobs. The plane is still being made in England, but its quality pales in comparison to the older American versions.
You'll also see many of these planes cast in brass. Stanley never made them in this metal. The source of these brass planes is from the many patternmakers who made copies of ones they borrowed. It is an easy plane to make, and with it being particularly useful in the patternmaking trade, it was inevitable that enterprising patternmakers would 'roll their own' and save themselves some dinero.
