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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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product by 192 and you shall have in your quotient 2751 ●… ●… for the number of paces shee will convey her shot being so mounted The Table of dead Ranges   0 1 2 3 4 5 6 Points S 192 985 1623 2032 2185 2281 2300 Paces C 201 958 1600 1983 2135 2232 2250 Paces To know how the range of his Peece increaseth or decreaseth from degree to degree FIrst you must finde by the table of right Ranges how much your levell right Range of your Peece is which number of paces divide by 25 and multiply the quotient by 11 and the product will be the first and greatest digression which is betweene the first and second degrees which divided by 40 the degrees contained betweene the first degree and 42 the utmost Randon and the quotient sheweth the number of paces that the shot shall loose at every digression from degree to degree to the last Randon and contrariwise for the increasing digression from 42 degrees the utmost Randon downe to the first degree How to finde the right Line or right Range of any Bullet for every elevation by any one right or dead Range given for the Peece assigned AS for example you are to seeke the right Range of 30 degrees for that peece whose dead Range for 30 degrees is knowne to be 2200 paces by it multiply the tabular number of right Ranges for 30 degrees which are 695 and divide the product by 2150 the tabular number for 30 degrees in the Table of dead Ranges and the quotient will bee 711 paces for the right Range of that peece mounted and discharged at 30 degrees elevation Another Example SUppose the levell right Range is given and the right Range of 30 degrees sought say if 192 the first number in the Table of right Ranges give 695 the tabular number therof for 30 degrees what shal 197 paces give the levell right Range given be multiply and divide and the quotient will bee 713 paces for the right Range sought To finde how much of the Horizontall line is contained directly under the right range of any shot TO finde what partlyeth under the right Range at 30 degrees elevation the right Range at 30 degrees by the precedent example being found to be 713 paces and the right signe of sixty grades the complement of 30 being 866 which multiplyed together and the product divided by 1000 the whole signe leaveth in the quotient 621 ●… ●… for the number of paces lying directly under the ●…ight Range To finde how much of the Horizontall line lyeth under the crooked Range of a shot made out of any peece of Ordnance at any elevation assigned THe crooked Range is so much of the course or way as the shot maketh as it goeth Helically between the right Range and the natural motion or before it maketh the first graze And may be thus found by deducting of the levell distance contained directly under the right line or right Range of any shot made found by the precedent Chapter out of the dead Range thereof found by the Chapter before going For the remainder will be the paces or other measures lying directly under the crooked Range To make a good shot in a peece not truly boared and to know how much any peece will shoot amisse the metal thicker of one side than another SVppose a Cannon is said to bee two inches thicker of one side in her mettall than another the distance to the mark suppose to be 500 paces that is 2500 foot the which divided by 9 foote the just length of the Cillinder of the peece yeeldeth in the quotient 277 foote ●… ●… that againe being multiplyed by ½ the superfluity of the mettall being 1 inch makes still 277 ●… ●… which is the true demand sought To remedy a Peece not truely bored SEarch the peece with an instrument to know which is the thicker side then divide the over plus of the metall in two parts as before suppose 2 inches setting the dispart of your peece on that part to wards the thickest side of the peeces muzle and bringing the middle part of the metall at the base ring to that dispart and the upper part of the marke all in one line fire her and without question you make a very good shot care being taken in loading If the thicker part of her metall be above then you ought to make your dispart one inch more if under one inch lesse To choose a Peece to shoot at single marke the course also to be observed therein BY my will I would choose a peece as I had formerly practised in and well examined her qualities and when I came to load her I would not ramme home her powder any thing hard but very easie least in taking fire it should lye blowing first and cause the peece to start from her position but let her be duely directed by a true disparture that the axes of her bore may precisely respect the marke And lastly endeavour heedfully to prevent all impedimentall accidents which otherwise may happen and give fire Having found the first Shot faulty to the right or left hand over or under to amend the next time and make an effectuall shot IF it were wide towards the right or left hand I would place my eye on the base ring at the next time a little more to the same side accordingly more or lesse if it were too high direct the dispart under the marke as much if two low lay some small stone or other thing on the highest of the base ring and by that bring the dispart and the marke into one with discretion How to plant Ordnance in secret and double Batteryes so they may not easily be dismounted THey must be planted upon a platforme that discendeth behind that in their reverse they may go under the vamure of the Tronier the Tronier being vaulted they must by tackles bee brought up above the vamure and opened and fire given immediately at the opening so in their reverse will they be againe under the vamure and be free from dismounting so long as the furnemouth and vamure is able to keepe from the ruine of Counter-batteries Take this by the way for a note that a Cannon at 120 Paces will pierce a wall or rampart meanely settled onely 10 or 12 foot but in close sandy ground 20 or 24 foote deep And that a Cannon may being well fortified and discreetly managed be discharged 100 times in one day Note that a Cannon with one shot will ruine more than a 100 hods of earth can repaire Further note that 1000 shot made out of 10 Cannons will ruine more than 1500 shot can do out of made out of 5 Cannons And lesse can the enemy repaire the first than the last for a Cannon shot made every eighth part of an houre at 100 paces distant will make as much ruine as twelve men can keepe in repaire To make a shot in the night at a marke shewed you in the day how to
prepare for it I Would first lay the Peece precisely to the marke in the the day then with a chalke line dipt in Gum-water I would strike a right line on the upper part of the metall from the breech to the muzle upon which I would apply a good Magneticall needle or flye with a chart exactly divided and note the intersection then from the end of the line that was mark't or stricken upon the mettall I let fall plumbe lines upon the platforme and at the places where they touch I knocke in at each a small nayle Lastly with a Quadrant I observe the elevation of the concave or else with some staffe take the perpendicular height of some marke made in the mettall as well at the breech as at the muzle above the said two nayles and so you may againe lay the peece thereby alwayes to have the selfe-same position and so shoote as certaine at the marke by night as by day To make a goodshot at an Enemies light in a darke Night not having any Candle or other light by I Would light two peeces of match the one as much longer as the other as the quantity of the dispart of the peece and set the longer upon the upper part of the Muzle-ring and the shorter upon the base ring still traversing and quoyning the peece untill I have brought the light of the Enemies and the lights of the two matches all three into one line and so give sire To order a Peece to make a goodshot at a moveable Marke as at a ship under sayle Boate rowing or Horsman riding TAke a peece that will reach the Marke in a streight line then observe how the Marke moveth Next note the winde if it blowes much whether side-wayes with or against you and accordingly take advantage Then with the dispart considered observe some cloud or marke or point of land that lyeth in the course of his motion and when according to the swiftnesse thereof he is come so neare it as I guesse the shot and hee may meete at the Marke I give fire wherein remember this secret of Nature that any Peece will shoote farther from Sea to Land-ward than from Land to Sea-ward To shoote at a Squadron of men and what Peece to choose ACcording to the distance I would choose a Peece that in a streight line can reach the marke be it with Demi-culvering Saker or Faulcon and plant my peece if I could paralell to the Champion plaine that the shot may range to shoote at girdle-height unlesse the ground be stony for then would I place my shot short of them that grazing amongst the stones the stones may spoile them more than the shot of it selfe can doe by much but in no case would I shoote wide or over them for that were both losse and foule shame for the Gunner To shoote farther than ordinary in one and the selfe-same Peece with like quantity of pouder and shot I Will gently put home the powder and wad the same accordingly then the shot being involved with paper leather okam or such like to fill close the concave of the bore I would drive the shot close to the powder with a good wad putting after it a Tampion of Cork and with a spunge moistned with oyle I would annoint the vacant Cilinder and so barricadoe the peece that it should not reverse in the discharge Of Powder Peter and Match To refine Salt-peter wet TAke what quantity of Salt-peter you please and put the same into a cleane Caldron and put thereon a little faire water and boyle them together untill it raise the scum which take off and keepe and let it congeale and shoote in coolers as at first it did and what remaines boyle againe with more cleere water untill it congeale To know if Salt-peter be well refined TAke and lay it on a board and put a coale unto it if it raise an azure scum it is yet greasie if it leaves pearles it is yet earthly but if it burne into the board and leave nothing but a blacke colour and rise with a long flamed ventosity and exhalation it is well refined Severall wayes to know whether powder be decayed or no whether by moysture or age in part or in whole IT is the practicke part of a Gunner really to know his powder and whether it bee decayed or not by mutation or corruption And there are especially three ready wayes to finde the same The first by the sight the second by the feeling and the third and surest by fiering it By sight if it bee not blacke and darke but bright and inclining to a blewish tawny colour By feeling grasping it in the fist if it run through the fingers quickly and avoydeth the handling and cling not together By fire if fired it rise quicke and spread in a moment smoke little but riseth in a cleare flash unto which adde further if it leave no seezes but carry all away the powder is good or else the contrary may bee judged To renew powder decayed in part OF tentimes in Forts but most common and usually at Sea powder gathereth humid vapours which will in short time destroy the strength and vigority thereof and makes it of little and sometimes of no use without renewing it And sometimes it may decay by age Let therefore the Gunner first prove the powder by fire and if it make a flame with a long taile that is if it sleepe in its burning more or lesse then for every hundred pound of powder adde foure pound or sixe pound of refined Salt-peeter mixing them well together and put them to be beaten and wrought for the space of three houres and then moystning corning and drying the same as aforesaid proving it in meale dryed how it will rise by fiering and so doing the powder may bee made serviceable if the coale be not corrupted To renew powder totally decayed IF it be wholly decayed lay a Rayson frayle or mat in the bottome of a bucking-tub upon a fagot made of purpose or lathe set on edge to keepe the mat from the bottome and put in s●…awlayd crosse-wayes upon which powre the decayed powder and warme water being put thereon and let it stand and soaketen or twelve houres that all the Salt-peeter may bee assuredly dissolved then let out the liquor tap which congeale to Peter and thereunto adde a due proportion of Coles and Sulphure and make it into powder as is formerly taught for the Coles and Sulphure dissolving will remaine the straw fraile or mat To make powder that shall not wast with ●…ime TAke what quantity of powder you will and mixe it with Aquavitae and make it up in balles and dry them well in the Sunne or in a warme place and keepe them in an earthen pot well glazed untill you have cause to use them This powder will not decay nor waste with age To preserve powder that is good and keepe it from decaying I Would advise every Gunner to chuse the dryest
question asked about a Gunne pag. 9. A question of a Bullet pag. 9. How to turne a whole number into a fraction pag. 10. A question of whole numbers and fractions pag. 10. How you may Geometrically find the Diameter of any Bullet that weigheth twice so much as a knowne Bullet p. 11. Then to prove it Arithmetically pag. 11. By one Bullet to know the weight of another the Diameter given pag. 12. How by the weight of one Peece to know the weight of the other pag. 13. To know how many shots of powder will be in a grand Barrell of powder for any pee●…e pag. 13. The example how to doe it and the proofe pag. 13. By knowing what powder a Peece must have to know how much a peece of another bore will require pag. 13 To find the supersicies of a Bullet pag. 13 A Table shewing the weight of all Iron Bullets in Haberdepoize weight pag. 14. To find out how many square inches are contained in a solid content of a Bullet and consequently how many pound weight pag. 14. To find the true content of a circle pag. 15. Arithmetically to finde out the meane proportion betweene two numbers pag. 15. To know Arithmetically how much of every sort of mettall is in 〈◊〉 Peece of Ordnance pag. 16. To fi●…●…he superficiall content of the hollow concavity of a Peece of Ordnance pag. 17. How to find the solid content of the Cillinder of any Peece pag. 17. To measure any sort of Timber pag. 17. Directions how to weigh a great deale with a few weights pag. 18. How to measure any sort of Board Glasse or Pavement pag. 19. To measure Land an easie way pag. 19. How to measure any irregular substance whatsoever viz. as a Crowne Horsehead or any Image or concaved peece p. 19. How by knowing the weight of one fathome of rope to know the weight of another pag. 20. By the Compasse of any small rope to find the Diameter and weight of one foure five or sixe times as big pag. 21. How to know what empty Caske will carry any sort of Ordnance over a River pag. 21. How by knowing what powder a few Peeces spend being seldome discharged to know how much powder ●…ny of the same will spend being often discharged pag. 21. To know how much powder each Cannon spent in the former conclusion at a shot pag. 21. The proportigns betweene Bullets of Iron Stone or ●…ead pag. 21. By knowing the Diameter and weight of an Iron Bullet to find the weight of a Bullet of Marble pag. 22. How to know Arithmetically where to place the Trunnions of any Peece of Ordnance pag. 22. How much rope will serve to make breechings and tacklings for any Peece pag. 22. The names of all the principall members of a peece of Ordnance and how they are placed pag. 25. What instruments are most fit for a Gunner pag. 25. How to load and fire a peece of Ordnance ●…ke an Artist pag. 26. What Powder is allowed for proofe and what for action for each Peece pag. 27. If Weights Scales and Ladders be wanting how many Diameters of a Bullet will make a reasonable charge in powder for any peece named pag. 28. How Moulds Formes and Cartredges are to be made for any sort of Ordnance pag. 28. To make Ladles Rammers and Spunges for all sorts of Ordnance pag. 28. How you may finde whether a Peece have any flawes crackes or honey-combes pag. 32. To dispart a peece of Ordnance pag. 33. The Geometricall finding the Diameter for the weight of any peece assigned pag. 35. How to tertiate a peece of Ordnance pag. 35. To coole a peece of Ordnance when she is growne hot with overmuch fiering pag. 36. Reasons that cause a shot though well directed to erre in her charge pag. 37. To know at how many degrees of mounture a Peece will convey her Bullet called her best Randon pag. 38. A Table truely proportioned for our English Ordnance p. 39. A Table of Randons for the sixe first points of the Quadrant pag. 40. A Table of right Ranges also the use of the Table with a plaine example pag. 41. Of shooting at randon at a marke beyond the right line of the Peeces reach or right range of the shot and also of the dead range of any Peece at every degree with the example pag. 42. To know how the range of his Peece increaseth from degree to degree pag. 43. Ho●… 〈◊〉 ●…nd the right line or right range of any Bullet for every elevation by any one right or dead range given for the Peece assigned pag. 43. To make a good shot in a Peece not truely bored and to know how much any Peece will shoote amisse the met tall ●…icker of one side than another pag. 44. ●…o remedy a Peece not truely bored pag. 45. To choose a Peece to shoot at a single marke the course also to be observed therein pag. 45. Having found the first shot faulty to the right or left hand over or under to amend the next time and make an effectuall shot pag. 45. How to plant Ordnance in secret and double batteries so they may not be easily dismounted pag. 46. To make a shot in the night at a marke shewed you in the day and how to prepare for it pag. 46. To make a good shot at an Enemies light in a darke Nighs not having any Candle or other light by pag. 47 How to order a Peece to make a good shot at a moveable Marke as at a ship under saile Boate rowing or Horseman riding pag 47.