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ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A10819 The compleat cannoniere: or, The gunners guide Wherein are set forth exactly the chiefe grounds and principals of the whole art, in a very briefe and compendious forme, never by any set forth in the like nature before. With divers excellent conclusions, both arithmeticall and geometricall belonging thereunto: as also sundry serviceable fireworkes, both for sea and land service. A study delightfull and very usefull for men of the best quality, and imbrac'd by the greatest princes. Written by Iohn Roberts of Weston neere Bathe, Gentleman, practitioner and professor in the arte thereof. Roberts, John, of Weston. 1639 (1639) STC 21092; ESTC S115980 33,830 71

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your paper on the former first tallow him so will the paper slip off without staying or tearing If you deale with taper-bored Gunnes your formers must be made accordingly tapred If you make your Cartredges of Canvas halfe a diameter more is allowed for the seames but if of paper ½ or ●… ●… of an inch over-plus for the pasting will serve being lapt once about the former having a bottome first fitted upon the end of the former which must bee hard and close pasted to the lower sides of the Cartredge and then the bottome pasted also down hard round about then dry them well before you fill them and marke every one with inke or blacke lead how high they ought to be filled and let some want of their weight against times they are over-hot otherwise great danger may ensue To make Ladles Rammers and Spunges of all sorts of Ordnance IT is fit every Gunner should know how to trace cut out and also make up and finish all manner of Ladles Spunges and Rammers and to direct others how they should and ought to be severally fortified made and distinguished as followeth For double fortified Cannons to charge them with two Ladle fulls they are to be two diameters and a halfe of their shot in length from the head of the Ladle staffe which shall be one diameter more of plate which must goe about the said head The brasse plate must bee in bredth two diameters unto the said head where each side must have halfe a diameter more to inclose the head of the Ladle staffe within the plate The Button or head of the Ladle staffe must bee one diameter and of such height or thicknesse that it together with the brasse plate may be equall to the height of the shot due vent abated For Spunges their bottomes or heads are to be made of soft fast wood as Aspe Birch Willow or such like and to be one diameter and ●… ●… in l●…ngth and not above ●… ●… of the shots height The rest being covered with raw sheeps skinnes wooll and nailed on with copper nailes so that together they may fill the concave of the peece The Button or head of the Rammer must be turned of hard wood in length one diameter and ⅓ of such height thicknesse that it may fitly enter into the peece the shots vent allowed it were the better for fashion and strength if that ⅓ next the staffe were handsomely turned with abatement and a Ferrill or circle of brasse fitted thereon to save the head from cleaving when as with force wee shall ram the shot home All these heads and buttons must be pierced ●… ●… with a hole for the staffe an inch or more whereinto the staffe must be fastened let the staffe be one foot longer then the concave of the Gunne For the ordinary Cannons the Ladles must bee of the same breadth but must not surpasse 2. diameters of the shot in length And for the lessened Cannons two diameters onely to loade at twice all according to the fashion and breadth as before The Ladles for Culverings and Demi-culverings have foure Diameters of their proper shot in length and two in breadth The Sakers Faulcons and Faulconets which may at one Ladle full be loaden may have their Diameters of seven diameters and a halfe of their shot in length besides that coverture of the head of the staffe and of breadth two as all the rest have For Periors which usually have Chambers with Orloes ½ and ⅓ lesse in bore then their Chase containeth to them three times the diameters of their Chambers may be allowed for the length of their Ladles How to make a Ladle for a chambred bored peece YOur Compasses opened to the just diameter of your chamber within ⅛ part of an inch thereof divide that measure just in two equall parts then set your compasses to one of them and with the one foote fixed on a paper or smooth boord draw with the other foote a circle the diameter whereof will be a just quarter of an inch shorter than the diameter of the Chamber bore by the Circumference whereof you may find out the bredth of the plate of a Ladle that is fit for such a Chamber bored Cannon by the rule afore set downe how to finde the true breadth of the plate of any Ladle for any other peece in taking the three fifts parts of the circumference thereof the length ought to be twice the diameter and ●… ●… parts to hold at two times the just quantity of corne pouder Example The diameter of the circle drawne for any Cannon whose chamber bore is 7. inches containeth 6. ●… ●… the Circumference whereof is neere 21. inches ●… ●… and ⅕ parts thereof is 12. ●… ●… and so much ought that Ladle to be in breadth and in length 18. in the ●… ●… parts By this rule you may make a Ladle for any tapred peece Take this for a generall observation that a Ladle 9. bales in length and 2. bales in breadth will neare containe the just weight in powder that the Iron shot for any peece weigheth How to finde the height of the Chamber and how to find the the thicknesse of Metall round about the Chamber of any tapred peece TAke a streight peece of wyre and bow the end thereof in the bottome so as it may goe through the touch-hole then put it to the bottome of the bore in at the touch-hole and with any thing marke the wyre upon the upper part of the Metall then measure by your rule how long the wyre is from the stroke to the end Then put in the same wyre againe and put it up so as the bowed end may rest within the Cillinder and make another marke on the said wyre hard by the upper part of the metall round about the Chamber the which abated from the first stroke to the lowest end the remainder is the Diameter of the Chamber bore in that place This needeth no example To know whether the carriage of your peece be truely bord and how to make them for any peece MEasure the length of the Cillinder of your Gunne the plankes of your carriage ought to be once and a halfe that length Also measure the Diameter and the plankes at the fore end should bee in depth 4. times the Diameter and at the end next the ground two times ½ the Diameter and in thicknes once the Diameter How you may finde whether a peece have any flawes cracks or honey-combes AFter you have clear'd her put a usuall searcher made of two or three springs with points like great pin-heads bending outwards which being bended together with your hand untill it will enter into the Peece and put up to the touch-hole or bottom of the Cilinder turning it round in putting it in and pulling it out of the Chace and if any honey-combes be therein it will sticke with the poynts therein Also in a Sun-shine day with a Looking-glasse the Sun-beames may be reflected into the