|Publication number||US1083026 A|
|Publication date||Dec 30, 1913|
|Filing date||Oct 23, 1911|
|Priority date||Oct 23, 1911|
|Publication number||US 1083026 A, US 1083026A, US-A-1083026, US1083026 A, US1083026A|
|Inventors||Johan Abraham Ohlsson|
|Original Assignee||Johan Abraham Ohlsson|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (5), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
J. A. onLssorr. sum RAZOR. APPLICATION FILED 00128, 1911.
' 1,083,026, Patented Dec.30,1913.
uruTEn STATES. PATENT OFFICE.
rerun AZBRAHAM onnsson, on srocxnom, swn'nm'r.
SAFETYV'R'AZOQE specification of letters Batent. Patented Dec. 30, 191.3. ,Applicationfiledflntobcrfia, 1e11- smai no. amass.
To all whom it mag concern:-
Be it known that I, JOHAN ABRAHAM OHLSSON, a subject of the King of Sweden, and resident of Tegnrgatan 45, Stockholm, in the Kingdom of Sweden, have invented certain new and useful, Improvements in Safety-Razors, of which the following is a -specification, reference being had therein to the accompanying drawing.
This invention relates to improvements in safety razors of that class, in which the blade has an oblique edge or converging edges and is adjustable with relation to the correspondingly shaped uard, so that the action of the razor can e adapted to different kindsof bristles. According to this invention the holder for the said blade,
when having converging edges, is provided with a longitudinal recess in which the blade and the guard, each provided with a longitudinal slot, are inserted, the said plan View of a safety razor blade and guard embracing a guide for the, same, provided in the holder between the Walls of therecess. If thev blade has only one cutting edge, the guide is located at one edge of the holder and the slots in the blade and guard for engaging the guide are formed by hooKs on the back edges of the blade and guard In consequenceof the said arrangements the construction of the safety razor, 2'. e., the blade, the guard and the holder, is very simple and after the shaving operation has been finished, the razor can easily be cleaned, the cleaning operation being confined to the blade and the holder, while the guard, if made of paste- 1 board or any other cheap material, may
be thrown away. According to a modified form of the invention the holder is provided with two recesses, one for the blade and one for the guard.
A safety razorprovided with two converging edges and arranged in accordance with this invention is shown in the accompanying drawing, in aside view in Figure land in a plan view in Fig. 2. Fig. 3 is a side view and Fig. 4 is an end view, of the holder. Figs. 5 and 6 are a plan view of the guard and the blade respectively. Fig. 7 shows a modification. Fig. 8' is a arranged in accordance with this invention and with the blade provided with only one, oblique edge. Fig. 9 is a section on the line 9 to 9 of Fig. 8. Figs. 10 and 11 show the blade and the guard respectively.
I blade has nects the two halves of the holder and serves as a guide. 5 is the blade, see also Fig. 6; The said two converging edges 6, 6 and a. central, longitudinal slot 7, extending from the long end of the blade to the vicinity of the opposite short end of the same. The said slot 7 is so adapted that the blade 5 can be pushed into the recess 3, embracing with its slot 7 the. part a of the holder, as shown in Fig. 2. .7
The guard 8, seealso Fi 5,-oonsists of a flat piece preferably of t in,-stiif pasteboard or any other suitable cheapmaterial but may be made of sheet metal, celluloid ebonite or the like. The edges of the said guard 8 convergein the same or substantially the same degree as the edges 6, 6 of the blade -5 and are provided with teeth 9, which, in the well known manner, have a protecting action during the shaving operation. The said guard has a longitudinal, central slot 10, so that the guard can be pushed into the recess 3 of the holder 1,- embracing the part 4 of the same and the portions located on opposite sides of the slot 10, as shown in Fig. 2. I
The blade 5 and the guard Bare pushed into the recess 3, until the bottom wall of :the slots 7 and 10 respectively bears against the outer end of the part 4. The edges. 6, .6 of the blade 5 are then parallel or substantially parallel to the toothed edges of the guard 8 and located at some distance inside the same. The width of the recess 3, is'so determined that the blade 5 and the guard 8 are held in the holder by their friction with the side walls of the grooves. When the safety razor is used, thedistance between the edges 6, 6 of the blade and the free ends of the protecting teeth 9 can be changed by moving the blade 5 or the guard 8 for a short distance from the position shown in Fig. 2, and the razor thus be adapted to the sensibility of the skin and to coarser or finer bristles. During the shaving operation all or substantially all the lather and the bristles shaved ofi' will gather on the guard 8, which is then removed from the holder and cleaned. The slight quantity of lather,
' quently, the cleaning of holder 1 is provided with two recesses 12, 13
which sticks to the blade and the holder can easily be removed even without the blade being separated from the holder. Consethe razor, which is confined chiefly. to the guard, can easily be effected, and if the guard is made of pasteboard or any similar cheap material, it may be thrown away, so that only the blade and holder need be cleaned. After -the guard has ben removed, the blade can be sharpene or stropped while being located in the holder. The edges 11, 11 of the holder converge in the same or substantially the same degree as the edges of the blade, so that, the holder serves as a guide during the sharpening or stropping operation by being held in contact with the strop. Owing to the fact that the blade and the guard are lockedto the holder only by the friction between the said partsfno-screw's or similar means are necessary for the said purpose, which can be lost and thus render the razor unfit for use, until fresh screws, etc., have been procured.
In the modification shown in'Fig. 7 the for the guard and the blade respectively. In other respects the safety razor is arranged as described above.
In the form of the invention, shown in Figs. 8 to 11 inclusive and adapted to a blade,
having only one oblique cutting edge, the holder 11 is formed preferably by a piece of sheet metal being so folded, that a longitudinal groove .is effected, into which the blade 15 and the guard 16 can be pushed and in which they are held by their friction with the inner sides. of the shanks of the holder, U-shaped in cross section, as shown in Fig. 9. The holder 14is preferably formed by a sheet 'of metal having two converging edges, so that, when the said piece is folded up, thesaid edges are substantially parallel with the cutting edge of the blade 15. In
tance the back edgesfree guard order to cause the blade and guard to occupy a predetermined position with relation to the holder and to each-other and with the edge of the blade located at some disom the free ends of the teeth of the guard, inside the said ends and parallelly to the same, the parts 17 and 18 of the blade; 15 and the guard 16 respectively, located on holder'lythe said back forming a guide and performing. the functions of the guide 4 hereinbeforereferred to. When the blade 15 is moved longitudinally of the holder in order to adapt the distance of its edge from the free ends of the teethof the guard to different kinds of bristles, the said hookshaped parts 17 18 will keep the edge of the blade in the said position parallel with the free ends of the teeth of the guard. After the guard has been removed, also in this construction the blade can be sharpened or stropped while located in the holder.
The invention. may," evidently be applied also to razors the construction ofwhich dif "fers from those described above.
Having now. described my invention, what I claim'as newand desire to secure by- Letters Patent is:
In a safet razor, the combination ofvthe blade provi ed with a longitudinal slot, 'a provided with a longitudinal slot, and a holder provided with a guiding part and recessed to permit the said blade and guard to be slid therein and embrace theguiding part. p
In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses. p
JOHAN ABRAHAM OHLSSON.
Witnesses GBETA PnmN,
of the blade and the guard, d form hooks which engage the back 19 of the
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2952910 *||Jul 8, 1957||Sep 20, 1960||Meohas Isaac R||Disposable razor|
|US4441252 *||Jun 21, 1982||Apr 10, 1984||Caves Thomas J||Hair trimming devices|
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|US8202285 *||Feb 23, 2010||Jun 19, 2012||Boston Scientific Scimed, Inc.||Cutting blade for medical devices|
|US8679141||May 17, 2012||Mar 25, 2014||Boston Scientific Scimed, Inc.||Cutting blade for medical devices|
|U.S. Classification||30/53, 30/48, 30/346.61, 30/54, 30/335|