Straight Razor with removable Blade
Filed Wednesday, 20th July 1898
Published Tuesday, 17th January 1899
Inventor Frank Patak
Owners J. Frowenfeld, Frank Patak
Language EnglishCPC Classification:
Parts not referenced in the text: None
Parts not referenced in the images: None
To all whom it may concern:
Be it known that I, Frank Patak, a citizen of the United States, residing in the city and county of San Francisco, State of California, have invented an Improvement in Razors; and I hereby declare the following to be a full, clear, and exact description of the same.
My invention relates to improvements in razors.
It is especially designed to provide a means for conveniently separating and locking an independent and removable blade into the permanent back to which it is fitted, so that the blade can be at any time removed and replaced.
It consists, essentially, of a channeled back having a permanent latching device at the outer end and a transversely-fulcrumed latching-lever at the inner end, in combination with a blade having corresponding engaging devices formed upon it.
It also consists in details of construction, which will be more fully explained by reference to the accompanying drawings, in which—
The object of my invention is to provide an improved means for locking a removable razor-blade to the permanent back.
Where a razor-blade is formed with or permanently secured to the back the wear upon the thin edge of the blade is somewhat rapid by constant use, and as the back always remains of essentially the same thickness the bevel or angle of the edge of the razor becomes more obtuse by wear and frequent sharpening until the work done by it is unsatisfactory and the razor must be cast aside.
My invention is designed to save the backs and handles and enable the operator to use any number of blades with a single handle.
In my device the back
When the blade of the razor is to be attached to the back, it is slipped into the channel in the back and pushed along, until the lug
The value of this construction lies especially in the transverse movement of the locking-arm
In using the razor the user ordinarily presses the finger upon the corrugated depression at the inner end of the part which holds the blade and just behind the blade, and if the button were placed at this point it would always be in danger of being disengaged, so as to allow the blade to slip out. The construction which I have shown, however, prevents this, and as it is behind the blade it is not subjected to any accidental pressure when the razor is being honed or strapped.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is—
An improved razor consisting of a longitudinally grooved or channeled back and a pivoted handle, a removable cutting-blade fitted to said back and having a rear extension fitting endwise a corresponding slot in the back, said extension having an opening made through it at right angles with the blade and said back having a depression made in its side, a bar mounted within said depression so that its outer face is substantially flush with the side of the back said bar having a lug at one end adapted to engage the opening in the blade, and having at its opposite end an operating finger-piece, and a spring in said depression and, between the wall of the latter and the inner side of the bar.
In witness whereof I have hereunto set my hand.
S. H. Nourse,
Jessie C. Brodie.