| Description | Date | Identifier | |
| Ongoing customer complaints about squeaking brakes on 20-HP and 40/50 HP cars, and requesting an update on a solution. | 23th Sep 1925 | Box 5 \ 3 03-page187 | |
| Squeaking brakes on 40/50 HP & 20 HP models, detailing a remedy for the latter. | 24th Sep 1925 | Box 5 \ 3 03-page188 | |
| Remedies for squeaking brakes on 40/50 HP and 20 HP models. | 24th Sep 1925 | Box 5 \ 3 03-page189 | |
| Issue of squeaking brakes on the 20 HP model and experimental solutions. | 25th Sep 1925 | Box 5 \ 3 03-page190 | |
| Recommendation to fit a more effective damper to existing cars. | 25th Sep 1925 | Box 5 \ 3 03-page191 | |
| Issues and potential solutions for squeaking brakes on the 20 HP model. | 25th Sep 1925 | Box 5 \ 3 03-page192 | |
| Recommendation to develop a more effective damper that can be retrofitted to existing cars. | 28th Sep 1925 | Box 5 \ 3 03-page193 | |
| Customer complaints about squeaky brakes on 20 HP cars and potential solutions. | 28th Sep 1925 | Box 5 \ 3 03-page194 | |
| Front axle torque control, bending, and braking servo issues for the 20 HP model. | 10th Oct 1925 | Box 5 \ 3 03-page195 | |
| Potential solution for squeaking brakes on 20 HP cars. | 1st Oct 1925 | Box 5 \ 3 03-page196 | |
| Short memo regarding a potential fix for squeaking brakes on 20 HP cars. | 2nd Oct 1925 | Box 5 \ 3 03-page197 | |
| With sketches proposing modifications to the dust cover for front brakes on India models. | 1st Oct 1923 | Box 5 \ 3 03-page198 | |
| Fitting an improved brake damper to existing 20 HP cars to resolve squeaking. | 1st Oct 1925 | Box 5 \ 3 03-page199 | |
| The fitting of a device to address squeaking brakes on 20 HP demonstration cars. | 13th Oct 1925 | Box 5 \ 3 03-page200 | |
| Rectifying squeaking brakes on 20 HP cars before the 'India' type chassis was introduced. | 13th Oct 1925 | Box 5 \ 3 03-page201 | |
| Instruction to proceed with an aluminium casting for the brake carrier due to difficulty sourcing duralumin pressings. | 13th Oct 1925 | Box 5 \ 3 03-page202 | |
| The fitting of improved dampers to 20 HP cars to reduce squeaking brakes. | 14th Oct 1925 | Box 5 \ 3 03-page203 | |
| Fitting of an improved damper to 20 HP cars to reduce squeaking brakes. | 14th Oct 1925 | Box 5 \ 3 03-page204 | |
| Adopting the 'India' type brake drum damper to fix squeaking brakes on 20 HP cars. | 14th Oct 1925 | Box 5 \ 3 03-page205 | |
| Issues with the 'Phantom' 4-wheel brakes, specifically the poor friction on the equaliser link causing brake thumping. | 4th Oct 1925 | Box 5 \ 3 03-page206 | |
| The strength of the 'India' front axle. | 17th Sep 1929 | Box 5 \ 3 03-page207 | |
| Returning standardisation sheet X.4257 with the cost of supplying and fitting parts to an existing chassis. | 21th Oct 1925 | Box 5 \ 3 03-page208 | |
| Standardisation of chassis parts for brake drum dampers to reduce squeaking. | 14th Oct 1925 | Box 5 \ 3 03-page209 | |
| Suggesting an alteration to the spring arrangement on the 4-wheel brake servo for the Phantom and India models to reduce friction. | 24th Oct 1925 | Box 5 \ 3 03-page210 | |
| Customer complaint regarding the difficulty of operating the 20-HP Chassis Brake Release Trigger. | 14th Jan 1926 | Box 5 \ 3 03-page211 | |
| Preventing mud from getting onto front brakes. | 1st Feb 1926 | Box 5 \ 3 03-page212 | |
| Tests to ascertain how mud and water penetrate the front brake mechanism and how to prevent it. | 1st Feb 1925 | Box 5 \ 3 03-page213 | |
| Investigation into mud ingress in a brake drum assembly and the effect of dust cover design. | 1st Feb 1925 | Box 5 \ 3 03-page214 | |
| Investigation into methods of preventing mud and water ingress into brake drums, with diagrams of different cover designs. | 1st Feb 1925 | Box 5 \ 3 03-page215 | |
| Improvements to a brake dust cover to prevent mud and water ingress, recommending a new design and the use of solid rivets. | 1st Feb 1925 | Box 5 \ 3 03-page216 | |
| Diagram detailing the specifications for a successful dust cover modification. | 8th Feb 1926 | Box 5 \ 3 03-page217 | |
| Proposal for an automatic adjustment mechanism for all six brakes on a car. | 8th Feb 1926 | Box 5 \ 3 03-page218 | |
| The distortion of a sheet metal carrier bracket for Goshawk brakes caused by grease gun application. | 1st Feb 1926 | Box 5 \ 3 03-page219 | |
| Issues with brake shaft lubrication and a proposed alteration to the standard bearing cap G.50755. | 1st Feb 1926 | Box 5 \ 3 03-page220 | |
| Recommendation to adopt a modification without the use of holes 'P' in a bearing cap assembly. | 4th Mar 1926 | Box 5 \ 3 03-page221 | |
| Patent for friction in suspension links for 4-wheel brakes balancing gear. | 4th Mar 1926 | Box 5 \ 3 03-page222 | |
| Standardisation proposal for modified dust covers for front brakes. | 20th Feb 1926 | Box 5 \ 3 03-page223 | |
| Causes of squeaking brakes and potential solutions involving new dampers and materials from Ferodo Ltd. | 22th Mar 1926 | Box 5 \ 3 03-page224 | |
| Letter from Rolls-Royce of America acknowledging receipt of a completed Standardization sheet for modified dust covers for front brakes. | 23th Mar 1926 | Box 5 \ 3 03-page225 | |
| Extract from a Sales Conference discussing the issue of squeaking brakes on 40/50 HP and 20 HP models. | 25th Mar 1928 | Box 5 \ 3 03-page226 | |
| Squeaking brakes, seeking feedback on improved dampers for 20 HP cars and clarifying which brakes are affected. | 26th Mar 1926 | Box 5 \ 3 03-page227 | |
| Letter regarding a modified aluminium cover for the 20 HP front wheel brakes, expressing concern about water ingress. | 29th Mar 1925 | Box 5 \ 3 03-page228 | |
| Proposed but not recommended alteration to 20 HP Goshawk front wheel brake covers. | 22th Apr 1926 | Box 5 \ 3 03-page229 | |
| Modifications to the front brake differential to suit a new undershield. | 22th Jun 1926 | Box 5 \ 3 03-page230 | |
| Sticking brakes on 20 HP and Phantom models due to incorrect lubrication procedures. | 20th Nov 1928 | Box 5 \ 3 03-page231 | |
| Recommendation to warn owners about the danger of over-using the brake Intensifier and to charge for subsequent damages. | 22th Nov 1926 | Box 5 \ 3 03-page232 | |
| Proposal to address low-speed steering wobbles on the 20 HP model by adding friction to the cross steering levers. | 22th Nov 1925 | Box 5 \ 3 03-page233 | |
| Steering modification for the 20 HP model, concerning friction on the balls of cross steering levers. | 25th Nov 1926 | Box 5 \ 3 03-page234 | |
| Distortion of brake brackets due to an intensifier on a greasegun. | 26th Nov 1926 | Box 5 \ 3 03-page235 | |
| Advising the Works to slow down on items for the 20 HP model due to an imminent change in steering tubes. | 27th Nov 1926 | Box 5 \ 3 03-page236 | |
| The source of friction for the 20 HP pivots and steering system. | 29th Nov 1926 | Box 5 \ 3 03-page237 | |
| Load tests on a cross steering tube under various friction conditions. | 1st Dec 1926 | Box 5 \ 3 03-page238 | |
| Notice about modifications to address the distortion of brake brackets caused by the intensifier grease gun. | 1st Dec 1926 | Box 5 \ 3 03-page239 | |
| Redesign of the steering system to cure 'steering joggles' on the 20 HP model. | 1st Dec 1926 | Box 5 \ 3 03-page240 | |
| Use and modification of a spring-loaded cross steering tube. | 4th Dec 1926 | Box 5 \ 3 03-page241 | |
| Details for a cross steering tube joint and alternative spring parts for a 20-HP Chassis for India. | 8th Dec 1926 | Box 5 \ 3 03-page242 | |
| Suggestions for brake distribution on 40/50 & 20 HP models to improve safety. | 13th Dec 1926 | Box 5 \ 3 03-page243 | |
| Spring load requirements for the cross steering tubes on 40/50 HP and 20 HP models. | 14th Dec 1926 | Box 5 \ 3 03-page244 | |
| Solutions for friction issues in the steering of a 20 HP car. | 17th Dec 1926 | Box 5 \ 3 03-page245 | |
| Scheme 2201 detailing a joint with a friction ball for the cross steering tube and front end of the side tube for a 20-HP Chassis (India). | 31th Dec 1926 | Box 5 \ 3 03-page246 | |
| Recommendation for springs to be used in the 20 HP cross steering tube. | 7th Jan 1927 | Box 5 \ 3 03-page247 | |
| Standardisation test report for a spring-loaded cross steering tube to improve 20 HP steering. | 7th Jan 1927 | Box 5 \ 3 03-page248 | |
| Scheme for squeak dampers on 20 HP front brakes. | 28th Jan 1927 | Box 5 \ 3 03-page249 | |
| Confirming the fitting of an adjustable cross steering tube to a chassis. | 2nd Feb 1927 | Box 5 \ 3 03-page250 | |
| Follow-up request for an anti-squeaking device for a 20 HP vehicle which is due to go to France. | 18th Feb 1927 | Box 5 \ 3 03-page251 | |
| Proposed arrangement for a squeak damper on the 20 HP front brakes. | 22th Feb 1927 | Box 5 \ 3 03-page252 | |
| The proposed arrangement of a squeak damper on the front brakes for a 20 HP car. | 22th Feb 1927 | Box 5 \ 3 03-page253 | |
| Squeaking damper scheme for 20 HP front brakes, noting it as an improvement and requesting it be put into production. | 9th Mar 1927 | Box 5 \ 3 03-page254 | |
| Starting the preliminary work for a 20 HP non-squeaking device. | 10th Mar 1927 | Box 5 \ 3 03-page255 | |
| Braking issues such as sponginess and hopping, with suggestions regarding axle rigidity and damping. | 12th Mar 1927 | Box 5 \ 3 03-page256 | |
| Questioning the necessity and suggesting a design modification for 20 HP front wheel brake squeak dampers. | 3rd Mar 1927 | Box 5 \ 3 03-page257 | |
| Design of brake squeak dampers for the 20 HP and Phantom models. | 7th Apr 1927 | Box 5 \ 3 03-page258 | |
| Permanent set and free length of cross steering tube springs. | 20th Apr 1927 | Box 5 \ 3 03-page259 | |
| Complaint of a knock on brake application on a 20 HP car and recommending a standardised servo modification for all 20 HP and Phantom models. | 25th Apr 1927 | Box 5 \ 3 03-page260 | |
| Unsatisfactory performance of the servo without a spring thrust collar and issues with brake bedding. | 29th Apr 1927 | Box 5 \ 3 03-page261 | |
| The failure and loss of a rear brake squeak damper on a 20 HP car during testing in France. | 24th May 1927 | Box 5 \ 3 03-page262 | |
| Standardisation of an anti-brake squeaking device for the 20 HP chassis. | 11th Mar 1927 | Box 5 \ 3 03-page263 | |
| Standardisation sheet for an anti-brake squeaking device with a note about costs. | 19th Mar 1927 | Box 5 \ 3 03-page264 | |
| Confirming the decision to use cast aluminium for brake straps instead of duralumin. | 9th Dec 1927 | Box 5 \ 3 03-page265 | |
| The dispatch of layouts for the 'India 3' brake linkage, detailing modifications to accommodate a tubular cross member. | 20th Dec 1927 | Box 5 \ 3 03-page266 | |
| Alternative arrangement for the India 3 brake mechanism carrier levers. | 31th Dec 1927 | Box 5 \ 3 03-page267 | |
| Cause and potential solutions for 'brake thumps' on 20-HP cars. | 29th Oct 1928 | Box 5 \ 3 03-page268 | |
| The benefits of using damping friction on the cross steering tube for the Phantom and 20 HP models to avoid rattles. | 29th Apr 1927 | Box 5 \ 3 03-page269 | |
| Issues with the spring-loaded cross steering tube and requesting modifications for more spring room. | 26th May 1927 | Box 5 \ 3 03-page270 | |
| Modifications and performance issues of the 20 HP braking system. | 31th Oct 1928 | Box 5 \ 3 03-page271 | |
| Response to a complaint about brake thumps on a 20 HP car, requesting to test a vehicle with the described fault. | 28th Nov 1928 | Box 5 \ 3 03-page272 | |
| High cost of duralumin forged brake shoes and suggesting a trial of more affordable aluminium castings. | 1st Jan 1929 | Box 5 \ 3 03-page273 | |
| Request to remove the cross from a 12-G-4 chassis and fit adaptors for the brake cables. | 28th Jan 1929 | Box 5 \ 3 03-page274 | |
| Request for the urgent production of brake gear components to sketches HS.210/211/212 to conclude testing. | 13th Mar 1929 | Box 5 \ 3 03-page275 | |
| Standardisation report for a modified brake lever. | 30th May 1928 | Box 5 \ 3 03-page276 | |
| Chassis number for fitting a new part, test date, and associated costs. | 6th Apr 1929 | Box 5 \ 3 03-page277 | |
| Instructions on the lubrication of the 20 HP brake equaliser mechanism to prevent oil leaks. | 1st Jun 1929 | Box 5 \ 3 03-page278 | |
| Customer complaints of clanking in the brake mechanism upon pedal release. | 9th Oct 1929 | Box 5 \ 3 03-page279 | |
| Troubleshooting brake system operation and noise, with proposed solutions involving stops and dampers. | 3rd Oct 1935 | Box 5 \ 3 03-page280 | |
| Description of a damper's function within the brake mechanism. | 15th Oct 1929 | Box 5 \ 3 03-page281 | |
| The clanking of the brake mechanism, referencing an attached print. | 15th Oct 1929 | Box 5 \ 3 03-page282 | |
| Investigation into the cause and potential solutions for a clanking brake mechanism upon release. | 12th Nov 1929 | Box 5 \ 3 03-page283 | |
| Modifications to a lever mechanism using a spring, an inverted dashpot, and rubber stops. | 4th Dec 1929 | Box 5 \ 3 03-page284 | |
| Production issues related to the anchorage and bedding of front brake shoes. | 4th Dec 1929 | Box 5 \ 3 03-page285 | |
| Directive to modify the 20 HP chassis front wheel brakes, replacing damping pads with a groove on the drum. | 27th Feb 1930 | Box 5 \ 3 03-page286 | |
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