The new model can be easily recognized by the simple round barrel catch and the 2 additionalĮ. The gun illustrated in the exploded view is the old model. While both feature the safety hammer, most internal parts are not interchangeable. There is quite a difference in design between the old and new models.
When the trigger actuates the sear, the hammer is released and strikes the lifter, which transmits the blow to the firing pin. When the trigger is pulled or the hammer cocked, the lifter is brought up behind the firing pin. It rests against the frame and is cut away around the firing pin area. When the hammer is down, it does not touch the firing pin. The safety hammer mechanism is a very clever design.
Iver johnson top break 22lr pistols full#
See Auction Information for full details.' Payment Type: Payment Type: Please Add. For 2 a person could buy an Iver Johnson solid-frame Model 1900 in cals.22. View Item in Catalog Lot 284 (Sale Order: 282 of 630) Sold for: 95.00 to onsite 'Tax, Shipping & Handling and Internet Premium not included. While tfris sort of safety test is not particularly good for the gun, it was a selling point. Around the turn of the century top-L break revolvers were as common as coffee grinders in the average American home. S." top-break hammer and hammerless revolvers.įor years Iver Johnson advertisements pictured the hammering of a top-b^eak Jiammer to prove its safety. Iver Johnson eventually put out the less-expensive line of 4tU. For another dollar the top-break could be had with a much larger one-piece 'Western'-style walnut grip. Choice of barrel lengths ranged from 2" to 6". For a few dollars more he could buy a more efficient top-break model, available in single- and double-action, with hammer or hammerless double-action. For $2 a person could buy an Iver Johnson solid-frame Model 1900 in cals.22. This difficulty was overcome in the new model.Īround the turn of the century top-L break revolvers were as common as coffee grinders in the average American home. The greatest source of trouble on the old model was the lack of a positive cylinder stop which resulted in lead being shaved from the bullet as it passed from the cylinder chamber to the barrel mouth. The simplified extractor cam was made more reliable by replacing the fragile flat spring with a coil spring. The flat hammer spring was changed to an adjustable coil spring. Internally, the new model features a separate cylinder latch that allows a more positive stop.
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