Period Article: Shorkley Telescope Mount with Lateral Adjustment Jan 1902

Elric

Well-Known Member
George Shorkley may be MAJ George Shorkley... Surf's up!

https://books.google.com/books?id=G0hEAQAAMAAJ&pg=PA380&dq=maj+george+shorkley&hl=en&sa=X&ved=0ahUKEwjWrvnl3ZHYAhVJy2MKHSyuAsQQ6AEINjAD#v=onepage&q=maj george shorkley&f=false

Woodchuck hunting with Dr Mann
https://books.google.com/books?id=Q...hQMAg#v=onepage&q=maj george shorkley&f=false

Telescope Mountings (Lateral)
An improvement, adding lateral movement, to the mounts designed by George Shorkley.

American Rifleman, vol 31, No. 15, pages 308-309, Jan 23, 1902

https://books.google.com/books?id=4pkwAQAAMAAJ&pg=PA308&dq=shorkley+mount&hl=en&sa=X&ved=0ahUKEwjOmeGl0JHYAhUBwGMKHbTNBkIQ6AEIFDAA#v=onepage&q=shorkley mount&f=false

It may interest the readers of Shooting And Fishing to know that the awakened interest in telescopic mountings for rifles still continues. The wish for a lateral or wind gauge movement on the Shorkley rear mountings has led to the use of a simple and efficient device, as illustrated. Instead of slotting the mounting to the barrel, as at first, it is now attached by screws front and rear of the frame, the front screw being the pivot for the wind gauge. The screw hole for rear screw being slotted, allows a movement of mounting pivoting on the front screw, which movement is governed by set screws. Loosening one and correspondingly tightening the other secures a lateral movement, more or less, as may be desired, and holds it securely wherever placed. These set screws do not protrude be yond the frame and cause no inconvenience. To secure this movement freely the frame has been cut away in front, so that the tube of scope touches the frame only at its rear or back end, and then only on that side where the desired elevation marks are placed; the base rest or elevating bar, with its revolving spring, being arranged to hold the tube to that side, rendering any close fitting of the tube in the frame undesirable.

Telescope_Mounting_Lateral.jpg
THE SHORKLEY TELESCOPE MOUNTINGS.
1—Winchester .30-40 U. S. A. long range rifle with sliding 'scope in Shorkley mountings. 2—Shorkley front mounting with 'scope down for the long ranges.
3—Shorkley front mounting raised for the midranges.
4—Shorkley rear mounting, showing wind gauge device.
5—Showing revolving spring in elevating bar.
6—Side view of mounting fitted to a .30-40 U. S. A. round barrel rifle.

This manner of attaching the mounting to the barrel makes it convenient to change from one barrel to another, which can be quickly done, and the one mounting answering for all. In screwing to the barrel, it is well to use thin blotting paper or other yielding substitute between mounting and barrel, as this permits a better drawing of the screws, and no jarring from recoil will loosen them if the screws are well placed. The sight spring has been placed within the frame and not on top, as formerly. This change has been made to dispense with screws and lessen expense in making. It looks well and is as serviceable within as on top the frame, the flat top of frame making an excellent back sight for the ordinary open sights. These changes and additions have been made to make the mounting more fully answer the requirements of all, but little has been added to the expense of making, and the changes are of a kind that any mechanic can make, and the rifleman as well, if he has the needed tools. Careful tests have been made, and these changes have been found to do admirably well.

For myself, a wind gauge and mounting would very rarely be used. I have found it much better to hold for wind and light than to be constantly moving the sights to suit every change and more than likely get grievously mixed and quite forget where I am. Many others may think differently, and want a wind gauge. For these riflemen this arrangement for lateral movement will be found all that is needed. It in no way takes from the efficiency of the original mounting, and the movements are not so great as to cause confusion in estimating to this limit, but enough to keep well on the target at all the ranges. The screws for lateral movements have markings at the heads, and when the value of these markings is found-—which, of course, is determined by the length of ’scope or distance of object glass from the mounting—when this has been determined, correct movement can readily be secured.

With telescopic sights any change after a score has been begun with say a 4 anywhere about the black becomes ordinarily entirely unnecessary, and for me never desirable. I go to the firing point knowing my elevations for normal conditions. A careful record is made of the then prevailing conditions, and lights are adjusted to suit those conditions, and the shot fired, securing say a 4 at 3 o'clock. No change is needed for the next shot. If the conditions continue the same, I hold as far out at 9 o’clock as was my first shot at 3 o’clock, and my shot will of course be well in the black. Now, one is right and knows where to hold to strike the black, and from this point he makes his changes of holding for any changes of conditions that may occur during the score. No matter if a 9 o'clock wind has gone to a 11 to 1 fishtail wind, he holds up for it. The top of the white target makes a nice place to outline the sight on. If a thunder storm is threatening and the wind whips around to a fishtail 5 to 7 wind, one does not let it rattle him, but studies it and holds in the bank under the target, if needed. It is not a bad place to hold, I find, but it is hard luck that puts one there.

This estimating the wind in its direction and force, need not greatly trouble one if simple rules be adopted. It is the value of it from its different directions as affecting the bullet, with the changing light that calls for the most careful thought. The frontiersman’s advice, given in all sorts of difficulties, to “keep your head” about covers the ground, and to do this one needs to be free from complications caused by frequent moving of sights, and be ready to at once held for whatever is needed. With the telescopic sight this can be fairly accurately done under almost any conditions.

To keep the rear mounting small and sightly, and not high above the barrel, it became a necessity that the front mounting be so arranged that the 'scope could be raised and lowered at the object glass. For this purpose the front mounting, as illustrated, was devised. For long range work it was thought a sliding 'scope was best suited, and the mounting was made for it with the guide for the slide on the tube attached to the end of a strong flat spring with an elevating device placed beneath it, consisting primarily of a wedge shaped revolving disk, which, when turned to the right, elevates or raises the guide in which is held the slide attached to the 'scope. A turn to the left depresses it or lowers it, as every movement is taken up by the heavy spring to which the guide is attached. This disk is held at the elevation desired by a pin let in the barrel, on which the disk rests, the wedged edge being notched for different elevations and holding directly under the object glass of 'scope. A ring or other attachment for 'scope can as well be attached and the tube be held rigid or sliding as may be desired.

This device is novel and is all that can be desired for the purpose. With the tube raised for the mid ranges, 200, 500 and 600 yards, it is only needed to lower it by revolving the disk to the left; for the long ranges, 800, 900 and 1,000 yards, thus keeping the one small rear mounting in use for all ranges. In the front end of the elevating bar of the rear mounting is placed a revolving spring that holds the tube to either side of the mounting desired; the markings for mid ranges are on the right, and for long ranges on the left side of frame.

No special effort has been made to make these mountings specially detachable, but the ’scope can be quickly removed from the rifle without the use of any implements; and the rear mounting by turning two screws. The front mounting need not be detached, as it need not be in the way of any other sight that can be used if held in its own slot. The one illustrated uses the front sight slot of the barrel. These mountings were devised to meet the present conditions, and not for the blue pencil ’scopes we are told are to come. Something vastly different will be needed then, but in the meantime we may make these do for our old ’scopes, and not be unhappy over our needs in this respect.

This matter of sights and furnishings for a favorite rifle is very much a personal one, I find. One likes this ’scope best, another that ’scope best; one wants such and such mountings, another will not even look at them. So much for—shall I say fancy? Now, for me, the simpler, if efficient, the better, if other conditions are well met. “Lucky"—as Medicus writes in a kindly communication, quoting the old Indian—“lucky we don’t all think alike, or you all would want my squaw." GEORGE SHORKLEY.

[Mountings like those described above can be had of Gus Schwarz, expert mechanic, 309 East Eighty first street, this city.-—En.] [Ed. New York?]
 
Last edited: