| Description | Date | Identifier | |
| Results of bench and road tests on a hydraulic steering damper. | 27th Jan 1927 | Box 68 \ 1 scan0090 | |
| Technical memorandum on hydraulic damper performance, oil viscosity, and steering system calculations. | 27th Jan 1927 | Box 68 \ 1 scan0091 | |
| Specifications for shock damper pressure, oil flow, and leak dimension to counteract wobble. | 28th Jan 1927 | Box 68 \ 1 scan0092 | |
| Blueprint detailing the performance characteristics of a hydraulic steering damper, with graphs for oil viscosity and pressure versus flow. | 28th Jan 1927 | Box 68 \ 1 scan0093 | |
| Spring load variations in shock absorbers and the use of aluminium washers for adjustment. | 2nd Feb 1927 | Box 68 \ 1 scan0094 | |
| Advantages and considerations of hydraulic damping for steering systems. | 1st Feb 1927 | Box 68 \ 1 scan0095 | |
| Proposal to modify the steering shock damper with a bypass system to facilitate shunting. | 1st Feb 1927 | Box 68 \ 1 scan0096 | |
| Request for blueprints and parts to experimentally fit a hydraulic steering damper to a Phantom chassis. | 16th Feb 1927 | Box 68 \ 1 scan0097 | |
| Benefits of damping friction on the cross steering tube to avoid rattles. | 29th Apr 1927 | Box 68 \ 1 scan0098 | |
| Proposal to standardize the Klaxon horn wiring on the 20 HP model to a single earthed wire, similar to the New Phantom. | 9th Dec 1925 | Box 68 \ 1 scan0099 | |
| Standardisation of the 40/50 Type Klaxon switch and wire for the 20 HP chassis. | 22th Jun 1926 | Box 68 \ 1 scan0100 | |
| Faulty Klaxon switch on chassis 9-EX, which caused the horn to blow continuously. | 23th Aug 1927 | Box 68 \ 1 scan0101 | |
| Issue with the side steering tube interfering with the lock on car 46-PK and proposing a solution. | 4th Jul 1924 | Box 68 \ 1 scan0102 | |
| Special Side Steering Tube made to fit an EAC engine into an E.A.C.III chassis frame. | 18th Jul 1924 | Box 68 \ 1 scan0103 | |
| Graph showing the mechanical efficiency of an E.A.C.V. steering box with increasing loads in the side steering tube. | 21th Jul 1925 | Box 68 \ 1 scan0104 | |
| Modifications and experimental testing of a combined side and cross steering lever. | 13th Aug 1925 | Box 68 \ 1 scan0105 | |
| High-speed steering wobbles and the results of tests using a damped pendulum lever. | 17th Aug 1925 | Box 68 \ 1 scan0106 | |
| The phenomenon of high-speed steering wobbles. | 12th Jun 1925 | Box 68 \ 1 scan0107 | |
| High-speed wobbles, detailing tests on tyre pressures, wheel gather, and steering tube springs. | 17th Aug 1925 | Box 68 \ 1 scan0108 | |
| Tests conducted to understand and mitigate high-speed wobbles in vehicles. | 12th Jun 1925 | Box 68 \ 1 scan0109 | |
| Fitting Dunlop wheels and modifying the steering lever on a 'Phantom' test car. | 28th Sep 1925 | Box 68 \ 1 scan0110 | |
| High-speed steering wobbles and tyre testing. | 1st Oct 1925 | Box 68 \ 1 scan0111 | |
| Tests on hub wobble, comparing different tyres and suspension configurations. | 6th Oct 1925 | Box 68 \ 1 scan0112 | |
| Diagram illustrating tyre contact patch tests under various suspension and tube configurations. | 9th Oct 1925 | Box 68 \ 1 scan0113 | |
| Tests conducted to resolve high-speed steering wobbles. | 9th Oct 1925 | Box 68 \ 1 scan0114 | |
| The endurance testing of a hydraulic device and the geometry of a side steering tube to eliminate wobble. | 12th Jun 1925 | Box 68 \ 1 scan0115 | |
| Over-stressing and deflection of springs in the side steering tube for the Phantom model. | 17th Oct 1925 | Box 68 \ 1 scan0116 | |
| Required modifications to a plunger spring for the New Phantom side lever mechanism. | 17th Nov 1925 | Box 68 \ 1 scan0117 | |
| Reducing the rating of the side steering tube spring to mitigate road shocks. | 2nd Feb 1926 | Box 68 \ 1 scan0118 | |
| The urgent delivery of side steering tube springs. | 19th Feb 1926 | Box 68 \ 1 scan0119 | |
| Producing and fitting side steering tube springs with a reduced rating for an experimental 40/50 HP chassis. | 28th Feb 1926 | Box 68 \ 1 scan0120 | |
| Modifications to the Phantom steering to reduce road shocks and joggles. | 27th Apr 1926 | Box 68 \ 1 scan0121 | |
| The testing and feedback on weaker side steering tube springs for the Phantom model. | 30th Apr 1926 | Box 68 \ 1 scan0122 | |
| Report on Phantom steering complaints in Paris and arranging tests to resolve them. | 1st May 1926 | Box 68 \ 1 scan0123 | |
| Steering trouble, including kick back and high-speed wobble, on the Paris Phantom Trials Car. | 1st May 1926 | Box 68 \ 1 scan0124 | |
| Dismantling and resetting of standard friction components, with work held in abeyance pending the fitting of hydraulic dampers. | 19th May 1926 | Box 68 \ 1 scan0125 | |
| Steering tests in Paris evaluating the effectiveness of weaker springs and hydraulic dampers to reduce steering shock and high-speed wobble. | 19th May 1926 | Box 68 \ 1 scan0126 | |
| Steering tube springs and low-speed wobbles on the Phantom and Silver Ghost chassis. | 17th May 1926 | Box 68 \ 1 scan0127 | |
| Testing and proposed solutions for steering complaints on the Phantom model in France. | 17th May 1926 | Box 68 \ 1 scan0128 | |
| Request to send three sets of less strong side steering tube springs to Commdr. Briggs for fitting to an original Phantom type chassis. | 19th May 1926 | Box 68 \ 1 scan0129 | |
| Urgent internal memo regarding the despatch of 12 Side Steering Tube Springs to Conduit Street for Commander Briggs. | 20th May 1926 | Box 68 \ 1 scan0130 | |
| Despatch of three sets of side steering tube springs for standardisation. | 20th May 1926 | Box 68 \ 1 scan0131 | |
| Steering issues, particularly a 'tendency to wander', and proposing tests on competitor cars and component alterations. | 21th May 1926 | Box 68 \ 1 scan0132 | |
| The test of developing stiff steering and testing weaker buffer springs for the 40/50 HP chassis. | 28th May 1926 | Box 68 \ 1 scan0133 | |
| Proposal for obtaining additional friction in existing Phantom front axles. | 28th May 1926 | Box 68 \ 1 scan0134 | |
| Outlining tests and proposed improvements for the Phantom model's tyres and steering system. | 29th May 1926 | Box 68 \ 1 scan0135 | |
| Steering trial for chassis No. 21-TC, comparing different side steering tube spring strengths. | 9th Jun 1926 | Box 68 \ 1 scan0136 | |
| Standardisation of weaker springs in the side steering tube to reduce road shocks. | 4th Jun 1926 | Box 68 \ 1 scan0137 | |
| Scheme for handling steering complaints by fitting weaker springs, with a recommendation for review in 3 months. | 28th Jun 1926 | Box 68 \ 1 scan0138 | |
| The performance of weaker side steering tube springs to reduce steering shocks. | 5th Jul 1926 | Box 68 \ 1 scan0139 | |
| Modifications and testing for Phantom steering springs. | 1st Jul 1926 | Box 68 \ 1 scan0140 | |
| Customer satisfaction regarding the expense of fitting alterations. | 1st Jul 1926 | Box 68 \ 1 scan0141 | |
| Phantom steering, discussing disagreements on equipping experimental cars, spring design, and driver feedback. | 7th Jul 1926 | Box 68 \ 1 scan0142 | |
| Steering spring standardization and testing results from France. | 2nd Jul 1926 | Box 68 \ 1 scan0143 | |
| Experiments with side steering tube springs, discussing potential modifications and critiquing tests made by the Sales department. | 7th Jul 1926 | Box 68 \ 1 scan0144 | |
| The tests and specifications for Phantom side steering tube springs. | 7th Jul 1926 | Box 68 \ 1 scan0145 | |
| Page of typed fitting instructions for a spring assembly, with an accompanying blueprint diagram showing part numbers and notes. | 7th Jul 1926 | Box 68 \ 1 scan0146 | |
| Spring ratings, manufacturing tolerances, and the effects on vehicle steering and shocks. | 7th Jul 1926 | Box 68 \ 1 scan0147 | |
| Report discussing spring strength variations, steering shock tests, and the arrangement of side steering tubes. | 10th Jul 1926 | Box 68 \ 1 scan0148 | |
| Effects of weaker side steering tube springs on vehicle steering and handling. | 10th Jul 1926 | Box 68 \ 1 scan0149 | |
| Distinguishing between different types of Phantom steering worms. | 10th Jul 1926 | Box 68 \ 1 scan0150 | |
| Steering system updates, comparing different leads and spring ratings. | 1st Jul 1926 | Box 68 \ 1 scan0151 | |
| Typed letter expressing skepticism about an inventor's steering scheme but remaining open to reviewing it. | 28th Jun 1926 | Box 68 \ 1 scan0152 | |
| Testing different car configurations to resolve Phantom steering complaints. | 16th Jul 1926 | Box 68 \ 1 scan0153 | |
| Standardization and testing of different steering springs for the Phantom model. | 17th Jul 1926 | Box 68 \ 1 scan0154 | |
| Alterations to the New Phantom's steering and springs. | 19th Jul 1926 | Box 68 \ 1 scan0155 | |
| Confirming a telephone message requesting a car with specific steering and springs for a sales trial. | 19th Jul 1926 | Box 68 \ 1 scan0156 | |
| Testing 2000 lbs. springs in the Phantom's side steering tube. | 22th Jul 1926 | Box 68 \ 1 scan0157 | |
| Improvements to the Phantom side steering tube springs to reduce road shock felt on the steering column. | 7th Aug 1926 | Box 68 \ 1 scan0158 | |
| Component parts and drawings for a side steering tube experiment on a 40/50 HP chassis. | 12th Aug 1926 | Box 68 \ 1 scan0159 | |
| Complaints and resolutions regarding Phantom model steering and springs. | 12th Aug 1926 | Box 68 \ 1 scan0160 | |
| Methods for handling customer complaints regarding Phantom steering and springs. | 13th Aug 1926 | Box 68 \ 1 scan0161 | |
| Phantom Steering and Springs, referencing other correspondence. | 13th Aug 1926 | Box 68 \ 1 scan0162 | |
| Broken side steering tube spring found on Chassis 99 SC and its replacement. | 18th Aug 1926 | Box 68 \ 1 scan0163 | |
| Query regarding whether a broken spring found in the side steering tube on chassis 99-SC was of a weaker type. | 20th Aug 1926 | Box 68 \ 1 scan0164 | |
| Internal memorandum discussing an epidemic of 'Phantom' steering joggle complaints and proposed modifications. | 20th Aug 1926 | Box 68 \ 1 scan0165 | |
| Confirming approval to change side steering tube springs on original Phantom models to resolve customer complaints. | 23th Aug 1926 | Box 68 \ 1 scan0166 | |
| Fitment of 1500 lb. springs to the side steering tube and suggesting a redesign to accommodate more coils. | 23th Aug 1926 | Box 68 \ 1 scan0167 | |
| Modifications and assembly instructions for a side steering tube. | 1st Aug 1926 | Box 68 \ 1 scan0168 | |
| The disapproval of a Phantom Steering scheme and the upcoming design of a spring. | 26th Aug 1926 | Box 68 \ 1 scan0169 | |
| Revised side steering tube springs. | 1st Sep 1926 | Box 68 \ 1 scan0170 | |
| Proposal to use weaker springs in the side steering tube to reduce road shocks on the Phantom model. | 14th Aug 1926 | Box 68 \ 1 scan0171 | |
| Unsatisfactory results with a modified steering system on chassis 18-MC after changing springs. | 25th Sep 1926 | Box 68 \ 1 scan0172 | |
| Customer complaints and potential solutions for failing side steering tube springs. | 27th Sep 1926 | Box 68 \ 1 scan0173 | |
| High speed wobbles and broken springs on cars fitted with new Phantom steering. | 1st Oct 1926 | Box 68 \ 1 scan0174 | |
| Redesign of Phantom side steering tube springs to reduce stress. | 1st Oct 1926 | Box 68 \ 1 scan0175 | |
| Breakage of 1500 lb. springs on the New Phantom steering and the development of a new design. | 1st Oct 1926 | Box 68 \ 1 scan0176 | |
| New and replacement parts for the Side Steering Tube on the 40/50 HP chassis. | 6th Oct 1926 | Box 68 \ 1 scan0177 | |
| Requesting an order of springs for the side steering tube to be fitted on experimental 40/50 HP chassis. | 8th Oct 1926 | Box 68 \ 1 scan0178 | |
| Issues with 0.940' steering, including breaking springs and high-speed wobbles. | 11th Oct 1926 | Box 68 \ 1 scan0179 | |
| Parts list and instruction memo for special parts suitable for changeovers on the 40/50 HP chassis side steering tube. | 12th Oct 1926 | Box 68 \ 1 scan0180 | |
| Issue of blueprints for Side Steering Tube F.75859 for the 40/50 HP Chassis, Scheme 2258. | 14th Oct 1926 | Box 68 \ 1 scan0181 | |
| Steering performance with different spring, axle, and tyre combinations. | 11th Nov 1926 | Box 68 \ 1 scan0182 | |
| Proposed spring joint for the Phantom side steering tube. | 13th Nov 1926 | Box 68 \ 1 scan0183 | |
| Instructions for fitting lower-rated springs with increased deflection to the side steering tubes on a Phantom Chassis. | 16th Nov 1926 | Box 68 \ 1 scan0184 | |
| Continued document page listing standard parts that are replaced and their required quantities per chassis. | 16th Nov 1926 | Box 68 \ 1 scan0185 | |
| The unsatisfactory steering on Mr. Royce's Car 7-EX, requesting details of its current configuration. | 20th Nov 1926 | Box 68 \ 1 scan0186 | |
| Urgent request for two springs with a 600 lbs rating for a side steering tube end. | 17th Dec 1926 | Box 68 \ 1 scan0187 | |
| Cancelling and replacing instructions for 'K' Series and 'J' Series side steering tubes. | 21th Dec 1926 | Box 68 \ 1 scan0188 | |
| Standardisation of chassis parts relating to 1500 lbs+ springs, heavy front axle, and .720 worm. | 29th Nov 1926 | Box 68 \ 1 scan0189 | |
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