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The Crossbow   >   Chapter 40   >   Bullet Shooting Crossbow   >   Lock and Sites   >   p.197

Table of Contents List of Illustrations Index Appendix

The Crossbow

Sometimes when the bow-string has been hitched by hand over the catch of the lock preparatory to bending the bow with the lever (fig. 116, p. 180), the intention of doing so is changed. As the trigger in the stock can only be worked when the bow is fully bent, this knob is often useful in such a case for instantly loosing the string from the catch of the lock. The trouble of lifting it off the catch is thus avoided.

In many of the older bullet crossbows the trigger in the stock was absent, this small knob taking its place as the only means of setting free the bow-string when the bow was fully bent.

Fig. 140. - The Frame of the Fore-Sight, with Its Small Skein of Thread Stretched Between Two Metal Rings. Half full size.
Fig. 140. - The Frame of the Fore-Sight, with Its Small Skein of Thread Stretched Between Two Metal Rings. Half full size.

The frame that holds the bead which acts as a fore-sight is the notched steel fork attached to the fore-end of the stock, F, fig. 115, p. 178. This fork hinges down when not required.

To arrange the fore-sight:

(1) Obtain a couple of metal rings 1/4 in. in diameter, such, for instance, as are used for the top joint of a salmon rod.

(2) Place one ring on one arm of the notched fork and the other ring opposite to it on the other arm of the fork.

(3) With a needle and a couple of feet of black sewing cotton, connect the two rings together, so as to form a tight little skein (of about a dozen strands) between the upright arms of the fork, fig. 140.

(4) Take another length of black cotton and wrap it closely over this little skein and to within 1/4 in. of each ring.


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Working Model Trebuchet Kit DIY Trebuchet Kit Shipping

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The trebuchet kit includes fully precut and drilled frame parts, pins and axles, sling cord and sewn pouch, projectiles and fully illustrated assembly and firing instructions. 

Unlike the flimsy, snap together plywood trebuchet kits, our all hardwood trebuchet kit does not require additional cutting, trimming or shaping.

Requires only white carpenter's glue and a few bar clamps (not included) to assemble.

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Inspired by the great war machines and siege catapults of Leonardo da Vinci , this all Red Oak hardwood trebuchet features an open counterweight cabinet for range and trajectory adjustment. 

Individually crafted from cabinet-grade red oak, the da Vinci Trebuchet stands 14 inches tall in the cocked position, 24 inches tall in the fired position and will hurl a projectile up to 60 feet. Includes six projectiles and fully illustrated instructions.

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