Handwritten notes on a portion of a circuit diagram and calculations for a high frequency choke

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Archive Record|Table of contents

Frederick Lanchester collectionLAN

Correspondence and other documents ('Baxter' series)LAN/1

Frederick Lanchester correspondence and documents ('Fletcher' series)LAN/2

Biographical information on Frederick LanchesterLAN/2/1

Material on Frederick Lanchester compiled by Dr Peter Kingsford for his biography of LanchesterLAN/2/2

Frederick Lanchester reports for the Advisory Committee for AeronauticsLAN/2/3

Correspondence between Frederick Lanchester and the Advisory Committee for AeronauticsLAN/2/4

Correspondence relating to flightLAN/2/5

Lanchester's Laboratories LimitedLAN/2/6

Material relating to car manufactureLAN/2/7

PublicationsLAN/2/8

Personal and business correspondenceLAN/2/9

Handwritten note about summons served at 6.30 p.m. on 2 March 1916 on Frederick Lanchester for failing to keep windows shaded on 18 Feb 1916LAN/2/9/1

Copy letter from Frederick Lanchester to Lord Fisher asking him to intervene in lighting regulations summonsLAN/2/9/2

Letter from (secretary to Lord Fisher?) to Frederick Lanchester enclosing letter from G.G. Whiskard (secretary to Herbert Samuel?) (see LAN/2/9/4) having arranged for withdrawal of summons relating to lighting regulations offenceLAN/2/9/3

Copy letter from G.G. Whiskard (also see LAN/2/9/3)LAN/2/9/4

Telegram from Lord Fisher to Frederick Lanchester confirming withdrawal of summonsLAN/2/9/4A

Telegram from Hasell [of Jeffrey, Parr, Hasell & Parr solicitors] to Frederick Lanchester confirming withdrawal of summonsLAN/2/9/5

Letter from Chamberlain, King and Jones Limited to Frederick Lanchester noting that due to pressure of work they are unable to carry out the work at Hagley Road that Lanchester asked forLAN/2/9/6

invoice from Jeffrey Parr, Hasell and Parr, solicitors, to Frederick Lanchester for legal work concerning lighting regulations summonsLAN/2/9/7

Receipt for payment by Frederick Lanchester of invoice [relating to LAN/2/9/7]LAN/2/9/8

Letter from Jeffrey Parr, Hasell and Parr to Frederick Lanchester concerning lighting regulations summons (see LAN/2/9/5 and LAN/2/9/7)LAN/2/9/8B

Letter from Charles W. Goff, William Gowland Ltd, manufacturing opticians, Croydon to Frederick Lanchester arranging a meetingLAN/2/9/9

Handwritten notes concerning grinding of lensesLAN/2/9/10

Copy letter from Frederick Lanchester to Charles W. Goff enclosing report and conclusions on visit to company (see LAN/2/9/12)LAN/2/9/11

Copy report by Frederick Lanchester to Charles W. Goff on the causes of irregularity in lens grinding (see LAN/2/9/11)LAN/2/9/12

Copy letter from Frederick Lanchester to Charles W. Goff asking for sample lenses taken from the polishing process at hourly intervalsLAN/2/9/13

Letter from Charles W. Goff to Frederick Lanchester noting that his letter and report were received, and he will send sample lensesLAN/2/9/14

Letter from Charles W. Goff to Frederick Lanchester acknowledging LAN/2/9/14 and gives data on temperature of lenses during polishingLAN/2/9/15

Letter from Charles W. Goff to Frederick Lanchester concerning his letters of 17 and 18 June [1918], and notes that the improved methods are successfulLAN/2/9/16

Copy letter from Frederick Lanchester to Charles W. Goff thanking him for payment [for his consultancy work and report]LAN/2/9/17

Handwritten notes on a portion of a circuit diagram and calculations for a high frequency chokeLAN/2/9/18

Typed sheet of tests on wire - includes instruction on soldering aluminiumLAN/2/9/19

Typed abstract of paper by C.E. Skinner and L.W. Chubb in Transactions of the American Electro-Chemical Society, vol 26, 1914LAN/2/9/20

Handwritten calculations concerning loud speaker tube length and microphone diaphragmLAN/2/9/21

Copy typed patent application on reproduction of lower tones in amplificationLAN/2/9/22

Copy typed 'headings for agreement N.A.T. and F.W.L.' [Frederick Lanchester]LAN/2/9/23

Typed and handwritten method and calculations - Lanchester method of determining Young's modulusLAN/2/9/24

Letter from Charles Ethan Davis to Frederick Lanchester on Lanchester's war industries workLAN/2/9/25

Copy letter from Frederick Lanchester to Charles Ethan Davis replying to his letter (LAN/2/9/25)LAN/2/9/26

Letter from Charles Ethan Davis replying to Frederick Lanchester's last letter (LAN/2/9/26)LAN/2/9/27

Letter from Charles Ethan Davis to Frederick Lanchester acknowledging his letter of 29 April and enclosures (not included)LAN/2/9/28

Handwritten letter from Albert C. Lee to Frederick Lanchester thanking him for proposing him for the Institution of Automobile EngineersLAN/2/9/29

Copy letter from Frederick Lanchester to Basil H. Joy, Institution of Automobile Engineers on lapsed membership of C.Y. Knight, who had returned to the United StatesLAN/2/9/30

Letter from Sir John Boraston to Frederick Lanchester thanking him for reprints of Industrial EconomicsLAN/2/9/31

Letter from James Whitfield to Frederick Lanchester on the launch [boat]LAN/2/9/32

Letter from Lloyds Bank Limited to Frederick Lanchester debiting account with cost of two cables to U.S. relating to transfer of $26,491 to LanchesterLAN/2/9/33

Copy letter from Frederick Lanchester to Lloyds Bank Limited asking if American litigation regarding his patent is likelyLAN/2/9/34

Letter from Lloyds Bank Limited to Frederick Lanchester (replying to LAN/29/34), advising no actionLAN/2/9/35

Copy letter from Frederick Lanchester to Lloyds Bank Limited agreeing to the advice given in their letter (LAN/2/9/35)LAN/2/9/36

Typed copy of letter from Bank of America to Lloyds Bank Limited regarding final payment by John North Willys to Frederick Lanchester for purchase of patents on "balancing reciprocating engines"LAN/2/9/37

Letter from Lloyds Bank Limited to Frederick Lanchester enclosing LAN/2/9/37LAN/2/9/38

Copy letter from Frederick Lanchester to Lloyds Bank Limited regarding LAN/2/9/37-38LAN/2/9/39

Copy letter from Frederick Lanchester to Bank of America giving Willys a month's graceLAN/2/9/40

Copy letter from Frederick Lanchester to Lloyds Bank Limited enclosing LAN/2/9/40LAN/2/9/41

Copy letter from Bank of America to Lloyds Bank Limited regarding WillysLAN/2/9/42

Letter from Lloyds Bank Limited to Frederick Lanchester enclosing LAN/2/9/42LAN/2/9/43

Copy letter from Frederick Lanchester to Lloyds Bank Limited - may be able to negotiate with others in the U.S.LAN/2/9/44

Copy letter from Frederick Lanchester to Lloyds Bank Limited asking them to make up his passbook, and send to auditorsLAN/2/9/45

Letter from Lloyds Bank Limited to Frederick Lanchester acknowledging LAN/2/ 9/45LAN/2/9/46

Copy letter from Frederick Lanchester to Lloyds Bank Limited asking for return of passbookLAN/2/9/47

Copy letter from Frederick Lanchester to Lloyds Bank Limited asking to have passbook made upLAN/2/9/48

Copy letter from Frederick Lanchester to Lloyds Bank Limited asking for passbook to be made upLAN/2/9/49

Copy letter from Frederick Lanchester to Lloyds Bank Limited querying a chequeLAN/2/9/50

Copy letter from Bank of America to Lloyds Bank Limited asking for instructions on [Lanchester] patents lodged with them (see LAN/2/9/42)LAN/2/9/51

Letter from Lloyds Bank Limited to Frederick Lanchester enclosing LAN/2/9/51LAN/2/9/52

Letter from Lloyds Bank Limited to Frederick Lanchester saying will ask Bank of America to keep patentsLAN/2/9/53

Copy letter from Frederick Lanchester to Lloyds Bank Limited relating to purchase of shares from Daimler and Lanchester's Laboratories LimitedLAN/2/9/54

Copy letter from Frederick Lanchester to Lloyds Bank Limited, transferring Lanchester's Laboratories account to themLAN/2/9/55

Copy letter from Frederick Lanchester to Lloyds Bank Limited acknowledging arrangement for meetingLAN/2/9/56

Handwritten letter from Frederick Lanchester (at 41 Bedford Square, W.C.1) to Minnie? [his sister-in-law] on her birthdayLAN/2/9/57

Handwritten letter from Frederick Lanchester to 'my very own' [his wife Dorothea] from 'Daimler Works', 2a Sandy Lane, Coventry [referred to as "The Daimler Flat")LAN/2/9/58

Handwritten letter from Frederick Lanchester (from Gordon Villa, Bembridge, Isle of Wight) to 'my own' [his wife Dorothea]LAN/2/9/59

Handwritten letter from Frederick Lanchester (at Daimler Works) to 'my very own' [his wife Dorothea]LAN/2/9/60

Handwritten letter from Frederick Lanchester (from "Troubadour", Poole Harbour) to 'my very own' [his wife Dorothea]LAN/2/9/61

Handwritten letter from Frederick Lanchester to 'my dear one' [his wife Dorothea]LAN/2/9/62

Handwritten letter from Frederick Lanchester (c/o A.Russon, North Carlton, near Lincoln) to 'my very own' [his wife Dorothea]LAN/2/9/63

Handwritten letter from Frederick Lanchester (at South Western Hotel, Southampton) to 'the most wonderful of God's creations' [his wife Dorothea]LAN/2/9/64

Handwritten letter from Frederick Lanchester (at 41 Bedford Square, W.C.1) to 'my darling own' [his wife Dorothea]LAN/2/9/65

Handwritten note from Frederick Lanchester (at 41 Beford Square, W.C.1) to 'mine own' [his wife Dorothea]LAN/2/9/66

Handwritten letter from Frederick Lanchester (at 41 Bedford Square, W.C.1) to 'my own dearest' [his wife Dorothea]LAN/2/9/67

Handwritten letter from Frederick Lanchester (at Gordon Villa [Cowes, Isle of Wight?]) to 'my very dear Dorothy'LAN/2/9/68

Handwritten letter from Frederick Lanchester (at Daimler Works, 2a Sandy Lane, Coventry) to 'my very own' [his wife Dorothea]LAN/2/9/69

Twelve handwritten carbon copy letters from Frederick Lanchester to various people and organisations, written while his typewriter is being repairedLAN/2/9/70

Handwritten letter from Ethel (at Endegarth, 1 Oxford Road, St. Annes on Sea) to Frederick and Dorothea Lanchester thanking them for bookLAN/2/9/71

Copy typed letter from unknown (widow of Laurence) to "Sue" (Dorothea Lanchester?)LAN/2/9/72

Typed letter from Foster, Pettitt and Simcox, solicitors to Dorothea Lancester, enclosing copy of letter from Crosby Lockwood (not included) concerning purchase of copyright in book (Theory of Dimensions?)LAN/2/9/73

Typed letter from Foster Pettitt and Simcox, solicitors to Frank Lanchester enclosing copy of letter from Messrs Crosby Lockwood & Son Ltd (not included) concerning copyright in the book (see LAN/2/9/73)LAN/2/9/74

Typed letter from J. Laurence Pritchard, secretary of Royal Aeronautical Society to Dorothea Lanchester advising her to keep to a royalty basis for the Theory of Dimensions copyright offer from Crosby LockwoodLAN/2/9/75

Handwritten notes by Dorothea Lanchester concerning Crosby Lockwood offer regarding copyright in Theory of DimensionsLAN/2/9/76

Copy typed letter from Dorothea Lanchester to Mr Simcox [of Foster, Pettitt and Simcox] saying Captain Pritchard will act for her regarding Crosby Lockwood and copyright in Theory of DimensionsLAN/2/9/77

Copy typed letter from Dorothea Lanchester to [Captain] Pritchard asking him to act for her regarding copyright and Crosby LockwoodLAN/2/9/78

Typed letter from Foster, Pettitt and Simcox to Dorothea Lanchester acknowledging her letter and agreeing that it is best if Captain Pritchard acted on her behalfLAN/2/9/79

Letter from Captain Pritchard to Dorothea Lanchester regarding Crosby Lockwood's offerLAN/2/9/80

Copy typed letter from Dorotha Lanchester to Captain Pritchard enclosing LAN/2/9/82LAN/2/9/81

Copy typed letter from Crosby Lockwood to Dorotha Lanchester regarding purchase of copyrightLAN/2/9/82

Copy typed letter from Dorothea Lanchester to Crosby Lockwood responding to LAN/2/9/83LAN/2/9/83

Typed letter from Captain Pritchard Royal Aeronautical Society to Dorothea Lanchester arranging a meetingLAN/2/9/84

Copy typed letter from Dorothea Lanchester to Crosby Lockwood asking for a £150 lump sum payment for copyrightLAN/2/9/85

Handwritten note by Dorothea Lanchester regarding her suggestion of £150 offer to Crosby Lockwood for copyrghtLAN/2/9/86

Typed letter from Prof. O.G. Sutton at Military College of Science, Shrivenham, to Dorotha Lanchester asking if photograph of man holding glider in Aerial Flight is Frederick LanchesterLAN/2/9/87

Typed letter from C. de H. Bennett(?), Warrington House, Olney to Dorothea Lanchester offering to sort Frederick Lanchester's papersLAN/2/9/88

Typed letter from Blanche Ward to Aunt Dorothy [Dorothea Lanchester]LAN/2/9/89

Handwritten letter from ? (at Godmanstone, Dorchester) to PaulinaLAN/2/9/90

Frederick Lanchester's views on warfare tacticsLAN/2/10

Correspondence concerning financial matters, and Frederick Lanchester's deathLAN/2/11

Material relating to worm gears, aircraft propellers and wings, and Lanchester's Laboratories Ltd salesLAN/2/12

Reprints of articles and publications written by or about Frederick LanchesterLAN/2/13

Correspondence mostly relating to the publication of Frederick Lanchester's 'Potted Logs'LAN/2/14

Miscellaneous correspondence including with Colonel [Rookes] Crompton, electrical engineering pioneerLAN/2/15

Frederick Lanchester papers on optics and visualsLAN/2/16

Anatomy and vision/opticsLAN/2/17

Anatomy and vision/opticsLAN/2/18

Correspondence mostly concerning articles, papers and talks on vision and opticsLAN/2/19

Correspondence from Frederick Lanchester to Professor Robert LockhartLAN/2/20

Correspondence from Frederick Lanchester to Professor Robert Lockhart and othersLAN/2/21

Correspondence from Professor Robert Lockhart to Frederick LanchesterLAN/2/22

Copy correspondence from Professor Robert Lockhart to Frederick Lanchester, Lanchester family members and othersLAN/2/23

Correspondence between Frederick Lanchester and Robert LockhartLAN/2/24

Correspondence between Frederick Lanchester and Robert Lockhart mostly concerning anatomy, optics, visionLAN/2/25

Supplemental material donated at a later date - mostly aeronautical/militaryLAN/2/26

Supplemental material donated at a later dateLAN/2/27

PatentsLAN/2/28

PatentsLAN/2/29

Notes and correspondence on obtaining copyright on a book in the U.S.A.LAN/2/30

Miscellaneous correspondenceLAN/2/31

Lists compiled by Frederick LanchesterLAN/2/32

BlueprintsLAN/3

Sketch booksLAN/4

Note booksLAN/5

PatentsLAN/6

Glass plate negatives and imagesLAN/7

Photographic negatives of the blueprints (LAN/3)LAN/8

Sales and marketing photographsLAN/9