| Description | Date | Identifier | |
| Test results from track and dynamometer tests comparing a worm axle with a bevel axle. | 13th Dec 1911 | Box 2 \ 6 B002_X 140 141 157-page141 | |
| Continuation of a report on worm axle testing, detailing oil used, temperatures, power, noise, and wear. | 10th Jul 1908 | Box 2 \ 6 B002_X 140 141 157-page142 | |
| Submission considering different worm thread forms for potential use in a back axle. | 8th Jan 1912 | Box 2 \ 6 B002_X 140 141 157-page143 | |
| Instructions on improving the efficiency of worm gearing by altering thread obliquity and flank shape. | 19th Feb 1907 | Box 2 \ 6 B002_X 140 141 157-page144 | |
| Instructions on analyzing and calculating the shape of worm gearing for accuracy. | 19th Feb 1907 | Box 2 \ 6 B002_X 140 141 157-page145 | |
| Instruction regarding the symmetrical properties of worm wheel sections. | 10th Jan 1912 | Box 2 \ 6 B002_X 140 141 157-page146 | |
| Mr. Johnson's remark to expedite the chassis for the worm drive axle. | 9th Jan 1912 | Box 2 \ 6 B002_X 140 141 157-page147 | |
| To Mr Johnson detailing the relative speeds obtained with worm and bevel drive axles. | 9th Jan 1912 | Box 2 \ 6 B002_X 140 141 157-page148 | |
| Instruction discussing the potential efficiency gains of a buttress thread on a worm gear. | 27th Jan 1912 | Box 2 \ 6 B002_X 140 141 157-page149 | |
| Instructions for an experiment to compare buttress thread worm gears with standard spur gears. | 3rd Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page150 | |
| Request from Mr Royce for information regarding a Lanchester worm axle. | 3rd Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page151 | |
| Note from Mr Royce on improving the ground clearance of a worm axle by repositioning the thrust bearing. | 3rd Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page152 | |
| Suggestion from Mr Royce regarding the use of 935 x 135 wheels with worm axles to increase clearance. | 3rd Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page153 | |
| Directive from Mr. Royce concerning the design and experimentation of a worm axle. | 3rd Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page154 | |
| Directive from Mr Royce regarding the tooling for producing the Hindley worm axle. | 5th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page155 | |
| Request from Mr Royce to the Technical Committee for comparative data on various worm axles. | 3rd Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page156 | |
| With a sketch, discussing the potential to fit worm axles to covered cars and the need for further experiments. | 3rd Jul 1910 | Box 2 \ 6 B002_X 140 141 157-page157 | |
| Numbered list of comments and decisions regarding gear and axle design. | 3rd Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page158 | |
| To the Technical Committee relaying Mr. Royce's decision on the worm axle size and road clearance. | 3rd Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page159 | |
| Mr. Royce's suggestions for axle modifications, including a diagram. | 3rd Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page160 | |
| Instructions from Mr. Royce concerning the Hindley worm, axle test rigs, and bevel axle experiments. | 1st Nov 1913 | Box 2 \ 6 B002_X 140 141 157-page161 | |
| Technical committee memo discussing the efficiency and gear ratios of a worm axle. | 4th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page162 | |
| Gear tooth angles, wheel alloys, and lubricating oil tests for a worm axle. | 4th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page163 | |
| Page recommending the tabulation of results and the trial of 'Prices Motorine A'. | 4th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page164 | |
| Note discussing the material used for a worm axle, specifically the phosphor bronze alloy. | 4th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page165 | |
| Worm gear substitution to RH a/c less, also axle & 'cone' races. | 7th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page166 | |
| Mr Royce's instructions for a new design of straight-type worm gears. | 9th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page167 | |
| Note regarding Mr. Royce's feedback on the design of Hindley worm gears. | 9th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page168 | |
| Mr. Royce's opinions on modifications to worm gear designs. | 9th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page169 | |
| Magazine article discussing Paris race news, worm drive transmissions, and the Grand Prix route. | 13th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page170 | |
| Article from 'The Motor' discussing a proposed rubber tax in France and the selected Grand Prix course. | 25th Feb 1908 | Box 2 \ 6 B002_X 140 141 157-page171 | |
| Page from 'The Motor' magazine featuring articles on car technology, the Tour de France, new lamps, and a reader's anecdote. | 12th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page172 | |
| Magazine page featuring a suggestion for a special vehicle demonstration track near London and an article about a visit to the Clement Talbot Works. | 12th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page173 | |
| Instruction note comparing the bevel wheel pitch of a Daimler 22HP with a Rolls-Royce 38HP model. | 15th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page174 | |
| Departmental memo forwarding further notes from Mr Whitehead concerning worm gears. | 16th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page175 | |
| Instruction memo considering the use of a Buttress thread in worm gears. | 19th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page176 | |
| Instruction to the Technical Committee concerning the design and performance of worm gears. | 19th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page177 | |
| Technical instruction memo discussing the design and adaptation of worm gears, focusing on tooth angle and obliquity. | 19th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page178 | |
| To the Technical Committee regarding building a chassis with a worm axle and substituting a standard engine for a marine engine. | 20th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page179 | |
| Prioritisation of bevel axle matters over worm axle matters. | 21th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page180 | |
| Results of worm axle tests comparing different lubricating oils by temperature and horsepower. | 21th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page181 | |
| Initialed by F.H.R. with notes on worm axles, engine seizure, and performance variations. | 21th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page182 | |
| Report on worm axles and the required fitting of tie rods. | 21th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page183 | |
| Test results and handwritten observations for a worm axle gear test on chassis 1861. | 2nd Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page184 | |
| Loss of horsepower from 18 HP to 14 HP at low revs after running-in. | 23th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page185 | |
| Possibility of building a chassis with a worm drive axle and substituting a standard engine. | 23th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page186 | |
| Departmental memo to Mr. Royce outlining the alterations required to substitute a standard engine for a marine engine in a Worm Axle Car. | 27th Feb 1912 | Box 2 \ 6 B002_X 140 141 157-page187 | |
| Departmental memo discussing extensive alterations for a worm axle car with a standard engine, and a recommendation to start a new chassis. | 10th Nov 1910 | Box 2 \ 6 B002_X 140 141 157-page188 | |
| Departmental memo discussing the options for testing a worm axle car with a standard engine, specifically regarding the future of chassis 2004. | 29th Dec 1920 | Box 2 \ 6 B002_X 140 141 157-page189 | |
| Clarifying instructions for chassis builds, engine substitutions, and testing of a worm axle. | 1st Mar 1912 | Box 2 \ 6 B002_X 140 141 157-page190 | |
| Letter discussing an exhibition of improvements in bevel and worm axles, and arranging for design resources. | 2nd Mar 1917 | Box 2 \ 6 B002_X 140 141 157-page191 | |
| Directive from Mr. Royce regarding axle gear ratios for cars with different body weights. | 5th Mar 1912 | Box 2 \ 6 B002_X 140 141 157-page192 | |
| Note from Mr Royce regarding a modification to the worm axle oil filler. | 5th Mar 1912 | Box 2 \ 6 B002_X 140 141 157-page193 | |
| From Mr Royce outlining tests for the strength of a worm axle casing. | 5th Mar 1912 | Box 2 \ 6 B002_X 140 141 157-page194 | |
| Modifications and strength testing for a bevel worm axle. | 5th Mar 1912 | Box 2 \ 6 B002_X 140 141 157-page195 | |
| To the Technical Committee regarding standard axle gear ratios for cars with different body weights. | 5th Mar 1912 | Box 2 \ 6 B002_X 140 141 157-page196 | |
| With sketches concerning the design of a special chassis for a worm axle and standard engine. | 12th Mar 1912 | Box 2 \ 6 B002_X 140 141 157-page197 | |
| Decision to abandon the double bevel axle in favour of the worm axle and a staffing update. | 11th Apr 1912 | Box 2 \ 6 B002_X 140 141 157-page198 | |
| Recommending to obtain a new draughtsman, with a handwritten note about a forthcoming report on a worn axle. | 11th Apr 1912 | Box 2 \ 6 B002_X 140 141 157-page199 | |
| Departmental memo detailing unsatisfactory performance and vibration issues with a worm axle. | 11th Apr 1912 | Box 2 \ 6 B002_X 140 141 157-page200 | |
| Departmental memo detailing an investigation into axle vibration and seizure during dynamometer testing. | 29th Jan 1918 | Box 2 \ 6 B002_X 140 141 157-page201 | |
| Departmental memo discussing the performance and efficiency of an axle's worm gear, comparing it to a Lanchester worm. | 25th Jan 1912 | Box 2 \ 6 B002_X 140 141 157-page202 | |
| Letter from F.H. Royce discussing the continued development and testing of the worm axle. | 19th Apr 1912 | Box 2 \ 6 B002_X 140 141 157-page203 | |
| Note from Mr. Royce regarding the testing of tie rods for the worm axle. | 22th Apr 1912 | Box 2 \ 6 B002_X 140 141 157-page204 | |
| Clarifying Mr. Royce's statement on worm gear size in relation to road clearance, referencing Lanchester. | 21th Apr 1912 | Box 2 \ 6 B002_X 140 141 157-page205 | |
| Note regarding Mr Royce's feedback on temperature tests of lubricating oils for a worm axle. | 22th Apr 1912 | Box 2 \ 6 B002_X 140 141 157-page206 | |
| Worm axle door giving trouble when transmitting max torque with Wakefields Castor oils. | 24th Jul 1912 | Box 2 \ 6 B002_X 140 141 157-page207 | |
| From F.H.R. to Claude Johnson discussing the design and materials for worm gears. | 23th Apr 1912 | Box 2 \ 6 B002_X 140 141 157-page208 | |
| The merits of worm gears, buttress teeth, and double road wheel brakes. | 1st May 1912 | Box 2 \ 6 B002_X 140 141 157-page209 | |
| Quoting Mr. Royce's response to a suggestion about a buttress tooth for worm gear. | 1st May 1912 | Box 2 \ 6 B002_X 140 141 157-page210 | |
| Departmental memo requesting an order for a worm drive axle box and tube. | 16th May 1912 | Box 2 \ 6 B002_X 140 141 157-page211 | |
| Request to order various crankchambers and a complete worm axle for destruction tests. | 18th May 1912 | Box 2 \ 6 B002_X 140 141 157-page212 | |
| Requesting instructions be issued to the works to cut a worm wheel in copper. | 24th May 1912 | Box 2 \ 6 B002_X 140 141 157-page213 | |
| Letter from F.H.R. to Claude Johnson regarding the design and materials for a new worm and wheel back axle. | 15th Jun 1912 | Box 2 \ 6 B002_X 140 141 157-page214 | |
| Letter from F.H. Royce discussing the investigation of worm drive systems, with references to Dennis and Lanchester cars. | 20th Jun 1912 | Box 2 \ 6 B002_X 140 141 157-page215 | |
| Typed memo clarifying instructions for testing a bronze worm wheel with a 10% lead composition. | 20th Jun 1912 | Box 2 \ 6 B002_X 140 141 157-page216 | |
| Instruction card regarding the despatch of a new motor axle for cars. | 16th Sep 1912 | Box 2 \ 6 B002_X 140 141 157-page217 | |
| From Mr Barrington regarding Mr Royce's request for axle bumping tests on a worm axle. | 16th Sep 1912 | Box 2 \ 6 B002_X 140 141 157-page218 | |
| Extract detailing an experiment to test an axle assembly without a cross tie rod. | 6th Mar 1913 | Box 2 \ 6 B002_X 140 141 157-page219 | |
| Departmental memo regarding modifications to a worm axle, quoting Mr Royce on gearing ratios. | 6th Mar 1913 | Box 2 \ 6 B002_X 140 141 157-page220 | |
| Departmental memo seeking clarification on a note from Mr. Royce regarding an experiment to modify a worm axle. | 10th Mar 1913 | Box 2 \ 6 B002_X 140 141 157-page221 | |
| Mr Royce's remarks on modifications to a worm axle, including sourcing parts. | 29th Apr 1913 | Box 2 \ 6 B002_X 140 141 157-page222 | |
| Confirmation on a 'stop work' instruction, with a handwritten reply on the status of two axles. | 30th Jul 1913 | Box 2 \ 6 B002_X 140 141 157-page223 | |
| To Mr. Matthews confirming work can proceed on an experiment to build two types of worm axles. | 1st Aug 1913 | Box 2 \ 6 B002_X 140 141 157-page224 | |
| Confirming the decision to despatch Dr Campbell Thomson's car without altering the existing worm axle and transmission. | 13th Aug 1913 | Box 2 \ 6 B002_X 140 141 157-page225 | |
| Report from Hives on a worm axle that broke during jaggering tests. | 15th Oct 1912 | Box 2 \ 6 B002_X 140 141 157-page226 | |
| Examination report on damage to a bronze wheel, worm gear, and differential components. | 25th Oct 1913 | Box 2 \ 6 B002_X 140 141 157-page227 | |
| Decision to forego fitting stays to the worm axle to avoid delaying a car, with instructions for future fitting. | 25th Oct 1913 | Box 2 \ 6 B002_X 140 141 157-page228 | |
| Experimental testing of a third-party worm drive axle on a dynamometer, suggesting it may fail. | 1st Feb 1928 | Box 2 \ 6 B002_X 140 141 157-page229 | |
| Disadvantages of worm gears and recommending against testing a worm axle, citing a negative experience with a Stutz. | 24th Jul 1923 | Box 2 \ 6 B002_X 140 141 157-page230 | |
| Blank page or divider with the number 157 at the top. | 21th Dec 1911 | Box 2 \ 6 B002_X 140 141 157-page231 | |
| Meeting notes regarding a special petrol tank filler on chassis 1752 (Winthrop). | 21th Dec 1911 | Box 2 \ 6 B002_X 140 141 157-page232 | |
| Meeting minute discussing the redesign of a special petrol tank filler due to weight and leakage issues. | 11th Jan 1912 | Box 2 \ 6 B002_X 140 141 157-page233 | |
| Complaints about the straight petrol funnel design for the 20-HP chassis and requesting a horizontal version. | 24th Oct 1923 | Box 2 \ 6 B002_X 140 141 157-page234 | |
| Approval and procurement of new 'Liquall' petrol funnels for experimental use on 20 & 40/50 HP chassis. | 25th Oct 1923 | Box 2 \ 6 B002_X 140 141 157-page235 | |
| The standardization and future supply of 'Liquall' petrol fillers for 20 HP & 40/50 HP chassis. | 27th Feb 1924 | Box 2 \ 6 B002_X 140 141 157-page236 | |
| Standardisation of the 'Liquall' petrol filler for 40/50 and 20 HP chassis to replace the petrol funnel. | 12th Jan 1924 | Box 2 \ 6 B002_X 140 141 157-page237 | |
| With remarks from different personnel discussing the faults and potential improvements of a filler design. | 29th Mar 1926 | Box 2 \ 6 B002_X 140 141 157-page238 | |
| Calculations of end pressure on servo for the Peregrine and 20/25 HP models. | 15th Sep 1932 | Box 2 \ 7 B002_X 140 to 143-page01 | |
| Unsuitability of a shoe type servo for the Peregrine gearbox and proposing a two plate servo sketch. | 30th Nov 1932 | Box 2 \ 7 B002_X 140 to 143-page02 | |
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