| Year | 1928 |
| Date | 13-Sep |
| Volume | 59 |
| Issue | 1,427 |
| Page | 246 |
| Category | Internal Combustion |
| Part | |
| Title | Cam Gear Layout for Model Internal-Combustion Engines |
| Author | H.J.Grose |
| Notes | Lift/time curves for ordinary and masked poppet valves, excessive sliding between follower and tappet, unduly rapid movement of valves, assumed valve timing, layout for single cam, cam gear for V-twin engine |