Selected quad for the lemma: lord_n

Word A Word B Word C Word D Occurrence Frequency Band MI MI Band Prominent
lord_n earl_n robert_n viscount_n 16,276 5 11.7158 5 false
View all documents for the selected quad

Text snippets containing the quad

ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A25366 The making of rockets in two parts, the first containing the making of rockets for the meanest capacity, the other to make rockets by a duplicate proposition, to 1000 pound weight or higher / experimentally and mathematically demonstrated, by Robert Anderson. Anderson, Robert, fl. 1668-1696. 1696 (1696) Wing A3105; ESTC R1638 16,468 65

There is 1 snippet containing the selected quad. | View lemmatised text

The Making of ROCKETS In Two Parts The First Containing the Making of Rockets for the meanest Capacity The other To make Rockets by a Duplicate Proposition to 1000 pound Weight or higher Experimentally and Mathematically Demonstrated By ROBERT ANDERSON LONDON Printed for Robert Morden at the Atlas in Cornhil 1696. To the Right Honourable HENRY Earl of Romney Vicount Sidney of Sheppy Baron of Milton Master General of his Majesty's Ordnance Constable of Dover Castle Lord Warden of the Cinque Ports and one of the Lords of his Majesty's most Honourable Privy Council WELL knowing my most Noble Lord that these things will easily receive Perfection in your Hands which for many Reasons are beyond my reach This Treatise if it may deserve that name is the least in Bulk and seemingly relating to the sleightest Subject I have met withal in Pyrotechnia But in the many Volumns great and small that I have read relating to these Matters in our own and other Languages I do not find the least Pretence or Thought of doing that which here is undertaken viz. To raise so great a heap of Fire and to confirm the Fact by the greatest Proofs that can be had or wish'd for which are Experiments and Demonstrations Mathematical Yet this alone is not the matter aim'd at the Problem is universal and applicable to the Fortifications of all sorts of Guns and other Engines with their Carriages c. and is to increase or decrease the strength of Materials according to the Effects and Services required But the greatest Skill in this Undertaking being to adjust the Instrument and Means in a due and proper Proportion to the Effect sought for I do with all Humility and profound Respect make offer of this small Essay It is your Lordships great Abilities and Merit that has enabled you to tread the intricate and painful steps of Greatness and by the well discharging so many Eminent Employments to add if any thing can be added to the Great Name of your Renowned Ancestors An ardent Zeal for the Welfare and Honour of your Country has always been the inbred Vertue of your Family and which is brought to its Perfection in your self The Name of Master General of the Ordnance lays Claim to all my more than 25 Years Experience and Studies about the Art of Shooting in all sorts of Great Artillery amounts to But the adding something according to my poor Sphere and Capacity to the Defence Safety and Reputation of my Native Country has at all times so intirely govern'd me that upon this account also and indeed chiefly I am emboldned to lay this mean Attempt of mine before your Lordship trusting that it may at some time or other undergo a Trial and by your Lordships Favour receive a meet Incouragement and procure your Lordships Pardon c. to My Lord Your Lordships most Obedient Humble Servant Robert Anderson TO THE Young PYROBOLISTES ROckets are the most Artificial piece of Fire-work yet used amongst the Pyrobolistes and hath been more used of late Years than formerly and that the Young Artists may not spend their Time and Money unnecessarily I have given easie plain and ready Rules for making of Rockets to two Inches and half Diameter which is sufficient for all private Occasion viz. Of the Mould of a Rocket Of the Rouler and Case Of the Compositions Of the Receipts of Rockets Of the Driver Of the Boring of the Rocket Of the Stars and other Matter to be put in the Head of a Rocket To Head a Rocket Of the Sticking of a Rocket And lastly to Fire the Rocket And some Observations about the management of a Rocket in general all which I hope will prove casie and beneficial to the Ingenious and those that are willing to Learn and what you do endeavour to do it well and do not be Conceited which if so I have my ends And from these little beginnings greater Matters may be obtained and you may become serviceable to your Country in which be sure to be Careful Honest and Faithful TO THE Other PYROBOLISTES ABout fifteen Years since I considered of a method to increase or decrease the strength of the Metal of Guns which is this that I intend to discourse of And at the Close of a small Treatise to hit a Mark published in the Year 1691. I proposed that Problem in Print since that time there has been more than Ordinary occasion for it by Reason of the new Casting of the Mortar-pieces About two Years since I put that Problem into a method and made a Draught of the whole matter to increase or decrease the strength of the Metal of a Gun in any possible Proportion assigned But when I saw the Mortar-pieces brought from Sea broke it was thought to be a good time to shew it which was done and the whole matter discoursed of at large but it signified 00. But now I apply that Problem to the making of Rockets for the young Artist as you see in its proper place And it is manifest that the young Rocket-makers of this City are very Careful and Artificial in their Rockets of 8d 12d or 18d value otherwise they may break and so lose their Labour and Discredit themselves Seeing these Mathematical Rules are so applicable to the greatest nicety of the Rising of all sizes of Rockets is it not more valuable to be applied to those Chargeable Instruments of War viz. Guns of all sorts with their Carriages and all other their Furniture As to the Doctrine of shooting by the increase and decrease of Powder this way of making of Rockets proves it to be absurd for all Rocket makers to this time weaken the Composition of their Rockets as their Rockets are in greatness or having greater quantities of Composition and that by chance and without any Mathematical Demonstration And also by Experience in Table June 1. 1691. and in the first Column Experiment 4 against that in Column 2 you will find 4 Ounces of Powder and in Column 3 3377. Again in Column 1 against Experiment 1 in Column 2 you find ½ an Ounce of Powder and against that in Column 3 you find 213 now because the Requisite of Powder are as 8 to 1 therefore I multiply 213 by 8 and it makes 1704 much short of 3377 which indeed should have been equal to the said 3377. that is the Ranges upon the plain of the Horizon are not as the Requisites of Powder which projected those Ranges the like may be done in all the other Experiments I. have made hundreds of Experiments in several sorts of Mortar-pieces and am ready to make as many more all which will manifestly confute the Doctrine of shooting by the increase and decrease of Powder and have often invited the first promoter of that Doctrine to see his Invention confuted and I do here invite all the Practitioners in that Science of shooting by the increase and decrease of Powder to come and see their Doctrine confuted I do hear assert it is