| Description | Date | Identifier | |
| Instructions for checking and adjusting brake system clearances and pedal return. | 8th Jul 1924 | Box 178 \ 1 img091 | |
| The variations of the four-wheel braking system, including brake force distribution and the effects of maximum braking on steering. | 1st Jul 1924 | Box 178 \ 1 img092 | |
| Technical explanation of the semi-servo braking system's characteristics and effects on vehicle handling. | 8th Jul 1924 | Box 178 \ 1 img093 | |
| Page from a document explaining brake servo operation, fault diagnosis, and pedal pressure variation. | 1st Jul 1924 | Box 178 \ 1 img094 | |
| Guide on diagnosing steering pull from unequal braking and the philosophy of front brake setup. | 1st Jul 1924 | Box 178 \ 1 img095 | |
| Procedure for testing servo efficiency using an apparatus with two spring balances. | 9th Jul 1924 | Box 178 \ 1 img096 | |
| Instructions and considerations for testing a brake servo system, including notes on pedal pressure and friction lining temperature. | 9th Jul 1924 | Box 178 \ 1 img097 | |
| Diagram and procedure for testing servo efficiency using spring balances. | 13th Jul 1926 | Box 178 \ 1 img098 | |
| Graph showing braking units and percentage of braking on front wheels for varying servo torque multiplication. | 13th Jul 1926 | Box 178 \ 1 img099 | |
| Index page outlining topics related to car steering performance and fundamentals. | 13th Jul 1926 | Box 178 \ 1 img100 | |
| The requirements and limitations of modern steering gear, including desirable attributes and limiting factors. | 13th Jul 1926 | Box 178 \ 1 img101 | |
| Steering gear design, addressing road shocks, steering effort, and high-speed wobbles in large vehicles. | 13th Jul 1926 | Box 178 \ 1 img102 | |
| Graph and explanation concerning the effort required to steer a car and the types of steering gear. | 13th Jul 1926 | Box 178 \ 1 img103 | |
| Technical discussion on reversible and semi-reversible steering systems and their efficiency. | 13th Jul 1926 | Box 178 \ 1 img104 | |
| Page discussing irreversible steering systems, including a graph on screw and nut efficiency. | 13th Jul 1926 | Box 178 \ 1 img105 | |
| Various types of steering gear mechanisms with illustrations. | 13th Jul 1926 | Box 178 \ 1 img106 | |
| Page comparing Ross and Marles steering mechanisms and defining the fundamentals of centre-point steering layout. | 13th Jul 1926 | Box 178 \ 1 img107 | |
| Technical note on centre-point steering and the effects of transversally raked pivots. | 13th Jul 1926 | Box 178 \ 1 img108 | |
| The design and effects of different steering pivot geometries, including transverse and longitudinal rake. | 13th Jul 1926 | Box 178 \ 1 img109 | |
| Page discussing the self-centering characteristics of steering systems, with diagrams illustrating pivot types and force moments. | 13th Jul 1926 | Box 178 \ 1 img110 | |
| Page discussing the principles of wheel camber and wheel-gather (toe-in), with an illustrative blueprint. | 13th Jul 1926 | Box 178 \ 1 img111 | |
| Page discussing the theory of toe-in and wheel gather for cambered wheels to achieve optimal tyre wear. | 13th Jul 1926 | Box 178 \ 1 img112 | |
| Analysis of heavy left-hand steering, including a table of load measurements and a graph illustrating leverage differences. | 13th Jul 1926 | Box 178 \ 1 img113 | |
| The nature of high speed wheel wobble or wheel tramping, including diagrams. | 13th Jul 1926 | Box 178 \ 1 img114 | |
| Analysis of front axle wobble (shimmy), its relationship with wheel revolution speed, and the design challenges presented by modern components. | 13th Jul 1926 | Box 178 \ 1 img115 | |
| Technical analysis of high speed wheel wobble, its sustaining factors, and causes. | 13th Jul 1926 | Box 178 \ 1 img116 | |
| Analysis of vehicle wobbles, focusing on the effects of balloon tyres and wheel imbalance. | 13th Jul 1926 | Box 178 \ 1 img117 | |
| The causes of wheel wobble and basic alterations to prevent its occurrence. | 13th Jul 1926 | Box 178 \ 1 img118 | |
| Page discussing the causes of and preventative measures for front wheel wobble. | 13th Jul 1926 | Box 178 \ 1 img119 | |
| Page detailing steering adjustments and the causes and nature of low-speed wobbles. | 13th Jul 1926 | Box 178 \ 1 img120 | |
| The causes and preventatives for low-speed steering wobbles, page 22. | 13th Jul 1926 | Box 178 \ 1 img121 | |
| Precautions against low-speed wobbles and the effects of braking on steering. | 13th Jul 1926 | Box 178 \ 1 img122 | |
| Explanation of front axle control and the effects of braking torque on steering. | 13th Jul 1926 | Box 178 \ 1 img123 | |
| Page discussing the forces, couple, and torque acting on a front spring and axle when a wheel is locked, illustrated with two diagrams. | 13th Jul 1926 | Box 178 \ 1 img124 | |
| Analysis of steering instability, self-centering, and the effects of braking on front axle and spring dynamics. | 13th Jul 1926 | Box 178 \ 1 img125 | |
| Page detailing various designs of leaf spring suspension to resist torsion during braking. | 13th Jul 1926 | Box 178 \ 1 img126 | |
| Technical discussion on the effects of steering at high speeds and road shocks caused by out-of-balance wheels. | 13th Jul 1926 | Box 178 \ 1 img127 | |
| The effects of balloon tyres on high-speed steering wobbles and road shocks, with reference to the Silver Ghost. | 13th Jul 1926 | Box 178 \ 1 img128 | |
| The screw and nut type steering reduction gear and its reversibility. | 13th Jul 1926 | Box 178 \ 1 img129 | |
| Steering nut efficiency, self-centering, and gear ratios for the Silver Ghost and New Phantom models. | 13th Jul 1926 | Box 178 \ 1 img130 | |
| Steering characteristics, comparing the New Phantom and Silver Ghost models, including self-centering and road shocks. | 13th Jul 1926 | Box 178 \ 1 img131 | |
| Pivot inclination and wheel wobbles, with blueprint sketches comparing the Silver Ghost and Phantom models. | 13th Jul 1926 | Box 178 \ 1 img132 | |
| Issues with the Phantom car's steering through hydraulic shock dampers, a lightened front axle, and weight reduction. | 13th Jul 1926 | Box 178 \ 1 img133 | |
| Blueprint detailing the test rig and procedure for measuring the efficiency of a steering worm and nut. | 19th May 1926 | Box 178 \ 1 img134 | |
| The new Phantom engine lubrication system and the fundamentals of overoiling. | 19th May 1926 | Box 178 \ 1 img135 | |
| Performance curve and analysis of an average Phantom oil pump's capacity. | 19th May 1926 | Box 178 \ 1 img136 | |
| Description of the engine's oil pressure control system and the function of a spring-controlled release valve. | 19th May 1926 | Box 178 \ 1 img137 | |
| Graph of oil pressure against RPM and a description of the lubrication system using a lower pressure release valve. | 19th May 1926 | Box 178 \ 1 img138 | |
| Page discussing oil leakage in bearings, with a graph showing calculated oil pressure versus RPM due to centrifugal force. | 19th May 1926 | Box 178 \ 1 img139 | |
| Engine oil pressure, bearing clearances, viscosity, and lubrication systems. | 19th May 1926 | Box 178 \ 1 img140 | |
| Issues with overoiling, cylinder lubrication, and piston rings in an engine. | 19th May 1926 | Box 178 \ 1 img141 | |
| Page describing the operation and design of piston rings, focusing on oil control and the 'L' section ring. | 19th May 1926 | Box 178 \ 1 img142 | |
| Piston ring design, focusing on the wedge-shaped oil film, wear characteristics, and scraping efficiency. | 19th May 1926 | Box 178 \ 1 img143 | |
| Experiments to reduce engine over-oiling, focusing on piston types and oil flow through bearings. | 19th May 1926 | Box 178 \ 1 img144 | |
| Graph of oil flow through bearings versus R.P.M. and a discussion on overoiling when running light. | 19th May 1926 | Box 178 \ 1 img145 | |
| Page discussing engine lubrication, oil circulation, and consumption rates for a Phantom model. | 19th May 1926 | Box 178 \ 1 img146 | |
| Report page discussing engine oil consumption, smoking exhaust, and the effect of engine speed on these issues. | 19th May 1926 | Box 178 \ 1 img147 | |
| Summary of the factors that influence engine overoiling and methods to reduce it. | 19th May 1926 | Box 178 \ 1 img148 | |
| Method for measuring oil flow through engine bearings to diagnose an 'overoiler' car. | 19th May 1926 | Box 178 \ 1 img149 | |
| Test procedure to diagnose excessive oil flow in an engine by measuring the oil return rate. | 19th May 1926 | Box 178 \ 1 img150 | |
| Diagram showing the arrangement of apparatus for measuring oil flow through bearings. | 13th Jul 1926 | Box 178 \ 1 img151 | |
| Blueprint showing the apparatus required for oil flow measurements. | 13th Jul 1926 | Box 178 \ 1 img152 | |
| On steering heaviness caused by different tyre tread profiles and wear patterns on 40/50HP and 20HP models. | 30th Jun 1927 | Box 178 \ 1 img153 | |
| Index for a report on vibration-damping and shock-absorbing devices. | 22th Jun 1926 | Box 178 \ 1 img154 | |
| Introduction to vibration-damping and shock-absorbing devices, discussing the term 'Shock Absorbers' and common suspension faults. | 22th Jun 1926 | Box 178 \ 1 img155 | |
| Explaining the reasons for adopting variable-rating suspension devices, focusing on an auxiliary coil spring system. | 22th Jun 1926 | Box 178 \ 1 img156 | |
| Page discussing the failings of auxiliary springs and proprietary hydraulic cushion accessories like J.M. and Thompson. | 22th Jun 1926 | Box 178 \ 1 img157 | |
| Devices for increasing road spring rating, including auxiliary springs, and an analysis of longitudinal pitching at speed. | 22th Jun 1926 | Box 178 \ 1 img158 | |
| Page discussing suspension dynamics, inherent damping qualities of leaf springs, and mechanical friction dampers. | 22th Jun 1926 | Box 178 \ 1 img159 | |
| Analysis of different types of shock dampers, including the 'Hartford' type and single-acting variable load dampers. | 22th Jun 1926 | Box 178 \ 1 img160 | |
| Page describing 'Snubbers' and introducing hydraulic shock dampers. | 22th Jun 1926 | Box 178 \ 1 img161 | |
| Page discussing the principles governing the flow of a viscous liquid through an orifice. | 22th Jun 1926 | Box 178 \ 1 img162 | |
| The principles and operation of 'Houdaille' type hydraulic shock dampers, including the effects of oil viscosity. | 22th Jun 1926 | Box 178 \ 1 img163 | |
| Viscosity curve for Price's Motorine C oil and discussion on its properties and use in Houdaille shock absorbers. | 22th Jun 1926 | Box 178 \ 1 img164 | |
| Sectional diagram and explanation of a shock absorber, including a note on oil expansion. | 22th Jun 1926 | Box 178 \ 1 img165 | |
| Page describing the Lovejoy hydraulic damper with a technical diagram. | 22th Jun 1926 | Box 178 \ 1 img166 | |
| Comparison of shock absorber designs, detailing the advantages and disadvantages of one type and introducing the R.R. damper. | 22th Jun 1926 | Box 178 \ 1 img167 | |
| Blueprint diagram and explanation of the oil flow within a piston assembly during operation. | 22th Jun 1926 | Box 178 \ 1 img168 | |
| Page detailing road test results and operating principles for a superior damper design. | 22th Jun 1926 | Box 178 \ 1 img169 | |
| Page describing the operation and adjustment of a shock absorber, including oil flow and potential troubles. | 22th Jun 1926 | Box 178 \ 1 img170 | |
| Troubleshooting guide for a shock damper system, outlining potential causes and inspection points. | 22th Jun 1926 | Box 178 \ 1 img171 | |
| Index page for a document on the fundamentals of car suspension systems. | 28th Aug 1926 | Box 178 \ 1 img172 | |
| Introductory document on the principles and challenges of vehicle suspension design. | 28th Aug 1926 | Box 178 \ 1 img173 | |
| Page discussing the variables that affect the riding comfort of a car and the challenges in measuring it. | 28th Aug 1926 | Box 178 \ 1 img174 | |
| Page discussing the fundamental principles of suspension, focusing on the importance of low unsprung weight. | 28th Aug 1926 | Box 178 \ 1 img175 | |
| Spring deflection and the factors limiting spring flexibility in vehicle suspension design. | 28th Aug 1926 | Box 178 \ 1 img176 | |
| Graph and accompanying text illustrating the effect of spring flexibility on ride comfort during upward acceleration. | 28th Aug 1926 | Box 178 \ 1 img177 | |
| Spring oscillation, natural frequency, and its effect on passenger comfort, including the formula for the period of a spring. | 28th Aug 1926 | Box 178 \ 1 img178 | |
| Graph and analysis of spring periodicity, plotting frequency against deflection to evaluate suspension characteristics. | 28th Aug 1926 | Box 178 \ 1 img179 | |
| Page discussing the influence of the car's centre of gravity and the necessity for suspension damping, with a table comparing R-R and Sunbeam models. | 28th Aug 1926 | Box 178 \ 1 img180 | |
| Vehicle suspension principles, focusing on conventional leaf spring systems. | 28th Aug 1926 | Box 178 \ 1 img181 | |
| The advantages and disadvantages of different vehicle suspension systems, including quarter elliptic springs. | 28th Aug 1926 | Box 178 \ 1 img182 | |
| Page describing the characteristics and applications of various leaf spring designs for vehicle suspension. | 28th Aug 1926 | Box 178 \ 1 img183 | |
| Page discussing the pros and cons of cantilever and transverse suspension systems, with an illustration. | 28th Aug 1926 | Box 178 \ 1 img184 | |
| Devices used to reduce internal friction in conventional leaf springs, including a product called 'Rectaskid'. | 28th Aug 1926 | Box 178 \ 1 img185 | |
| Auxiliary spring devices and shock absorbers, including 'Alf's Button' and 'Nevajah'. | 28th Aug 1926 | Box 178 \ 1 img186 | |
| Auxiliary springs, specifically the J.M. and Thompson types, and the development of fabric and rubber shackles. | 28th Aug 1926 | Box 178 \ 1 img187 | |
| The advantages and disadvantages of rubber and fabric spring shackles, with diagrams. | 28th Aug 1926 | Box 178 \ 1 img188 | |
| Rebound devices and arrangements for increasing spring internal friction, with examples from Fiat and Woodhead. | 28th Aug 1926 | Box 178 \ 1 img189 | |
| Page discussing various types of leaf spring designs, including rebound and reversed leaves, for a Bentley. | 28th Aug 1926 | Box 178 \ 1 img190 | |
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