|Publication number||US1373874 A|
|Publication date||Apr 5, 1921|
|Filing date||Apr 21, 1920|
|Priority date||Apr 21, 1920|
|Publication number||US 1373874 A, US 1373874A, US-A-1373874, US1373874 A, US1373874A|
|Inventors||Engstrom Carl O|
|Original Assignee||Engstrom Carl O|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (6), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
c. '0. ENGSTROM.
APPucATloN FILED APR.2|. 1920.
1,373,874. atented Apr.5,192 1.
WITNESS IN VEN TOR W W A TTORNEYS CARL o. ENGSTR-OM, or SACRAMENTO, CALIFORNIA.
Specification of Letters Patent.
Application filed April 21, 1920. Serial No. 375,425.
T all whom it may concern Be it known that I, CARL O. ENosTnoM, a citizen of the UnitedStat-es, residing at Sacramento, in the county of Sacramento and State of California, have invented certain new and useful Improvements in Safety- Razors, of which the following is a specification.
The present invention relates to improvements in safety razors, and more particularly to that type of razor illustrated in Letters Patent No. 1,226.322, granted to me on the th day o't'lday 1917.
The p incipal objects of the present invention are to provide a safety razor construction, wherein the guard and blade are capable of adjustment one relatively to the other, enabling the user to shave lightly or closely without in any manner flexing the blade or guard; a further object is to pro vide the construction wherein the blade is held in operative position by a simple yieldable clamp, easily applied and removed from operative position. Another object is to provide a construction which is capable of be easily and quickly dried and cleaned after use, one using a blade of simple construction, and a razor which is capable of being manufactured at little cost.
With the above mentioned and other objects in view the invention consists in the novel construction and combination of parts, hereinafter described, illustrated in the accompanying drawings, and particularly set forth in the claims hereto appended; it being understood that various changes in the form, proportion, size, and minor detailsof construction may be resorted to without departing from the spirit or sacrificing any oi the advantages of the invention.
To more fully comprehend the invention reference is directed to the accompanying drawings wherein Figure 1, is a view in plan of the preferred embodiment of my invention.
Fig. 2, is a view in side elevation. Flg. 3, 1s a longitudlnal sectional view taken on line 3-3 of Fig. 1 viewed in thedirection of the arrows.
In the drawings, 1 indicates a handle forked at one end providing the head mounting arms 2, which carry at their ends the outwardly disposed alined fulcrum pins 3. The fulcrum pins 3, are received in openings near the ends of the end members 4 of the 7 head The end members are held together by a connectingplate 6 arranged with its faces spaced from the longitudinal 'Patented Apr. a, 1921.
sideedges of the end members 4, with its longitudinal side edges intermediate the ends of said end members 4:. end of the head 5, the side plates 6 are connected by a cylindrical pin 7 providing a fulcrum about which one end of a blade supporting bed 8 is bent as at 9, the main members i and disposed in substantial alinement with the lower edges of said end mem bers 4E. V
The terminal or free edge Sot said bed 8 is providedat opposite ends with the blade limiting or retaining fingers V 10, curved slightly downward toward the lower edge of end members :4, providing an abutmentthe cutting edge the blade is prevented from further move ment beyond the edge of the supporting bed by contact at opposite ends with the fingers 10.
Near the outer the holder portion 0]? said bed 8 lying between the cut Y To hold the blade in operative position as illustrated and described,means are prefer ably employed comprising a spring retaining clamp 14, formed of a fiat piece of spring materialbent to a substantial U shaped configuration in end el vation. The retaining clamp 14 is of a width substantially equal to the distance between walls of the head, and the legs 15 and'16 thereof are of a depth suiticient to extend over the connecting plate 6 and the bedS, when the clamp is in position.
To retain the clamp inoperative position, min the drawings, I prefer to employ a tension lever 17 fulcrumed relatively to the free end oi the leg 15 on a pin 18. The foot 19 of the lever is adapted on the downward movement on the-handle 20 of the lever to a substantially closedposition, to have frictioual contact with the cutting blade 6, and places said spring under tension. 7
The blade guard is preferabiy mounted in the following manner: 1
A guard plate 21 connects the ends ofthe end members t at their inner ends and the upper portion of said plate is curved upwardly and rearwardly toward the handle 1 terminating in a flange 22.
The lower inner edge of the guard plate is provided throughout its length with guard teeth 23 which lie in a plane parallel with and in spaced relation to the operative field of the cutting edge of the blade 12.
It will be apparent that the guard teeth 23, lie in advance of the cutting edge 13 of the blade 12 when the razor is in use, and all of said guard teeth are approximately in alinement with the pivotal connection between the handle and head.
To change the position of the cutting edge 13 of the blade 12 relatively to the teeth 23 to enable the user to shave lightly or closely I prefer to use the following mechanism: Extending across the head and pivoted at its opposite ends as at 2 1 in the end menr bers t at a point near the free end of the bed 8 is an operating cam 25 lying beneath the bed 8. The cam 25 is provided at this end passing through one of said end plates with a lever 26 having spring connection with and movable over a number of teeth 28 formed on the outer surface of the end of plate 21, as clearly illustrated in Figs. 1 and 2 of the drawings. It will be readily understood that axial movement imparted to the ca1n25 will change the position of the cutting edge 13 of the blade 12 relatively to the guard teeth 23.
To assist in maintaining the handle 1 in alinement with the plane of blade 12 I prefer to employ a spring 27 cariied by the handle 1 and contacting with the flange 22 extending rearwardly from the guard plate 21.
As in my former patent the present razor head is pivoted on a line approximately parallel with the edge of the blade 12 and guard teeth 23. It will be understood that the raising of the lever 17 releases the tension on the spring clip permitting the same to be readily removed from the frame and enabling the blade 12 to be removed from the bed 8.
The above set forth construction enables me to manufacture a razor at little cost and at the same time to provide a construction wherein the operator by moving the lever 26 over the teeth 28 will swing the cutting edge of the blade across the guard teeth 23 and adjust the razor for a light or close shave.
I claim 1. A safety razor comprising a frame providing a head, a handle connected therewith, a bed pivotally mounted within the frame,
cent to said guard, means for holding said blade to the bed, and means for adjusting the bed on its fulcrum to swing the cutting edge thereof relatively to the guard.
2. A safety razor comprisinga frame pro-- viding a head, a handle connected therewith,
a blade carried by the head and arranged with its cutting edge facing said handle, a toothed guard arranged parallel with and in advance of the cutting edge of said blade with the teeth facing said cutting edge, and
means for moving the cutting edge of said blade across said guard.
3. A safety razor comprising a frame pro viding a head, a handle connected therewith,
a blade supporting bed pivotally mounted to said head, a guard facing said bed, a blade 1 resting on said bed with its cutting edge parallel with said guard, a cam for cooperating with the bed for moving the same across the guard, and a spring clamp for retaining the blade to said bed in contact with the cam. a
4:. A safety razor comprising a fran'ii j, a
blade supporting bed carried thereby-gal and the bed guard arranged in advance of and with its teeth facing the free edge of said bed, blade resting on said bed with its cutting edge facing said guard, a spring clip substantially U shaped in'end elevation for 'extending over opposite sides of said bed,a 9'5 lever for placing said clamp under tension, and a handle connected with the frame.
5. A safety razor comprising a frame, a handle pivotally connected at one end thereto, a guard carried by the frame and ar- T ranged with its teeth approximately in alinement with the fulcrum connection between said handle and frame, a bed pivotally mounted in the frame to swing on an axis parallel with the fulcrum point of the handle, and disposed with its free edge adjacent to said guard teeth, a blade resting on said bed with its cutting edge adjacent said guard teeth, a plate within said frame above said bed, a spring clamp embracing said bed and plate, a lever associated with the clamp for bearing on the plate, and a cam cooperating with the bed for swinging the same against said spring tension to move the cutting edge of the blade across the guard teeth,
In testimony whereof I have signed my name to this specification.
CARL o. ENGSTROM;
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|US6502318||Apr 24, 1998||Jan 7, 2003||The Gillette Company||Razors|
|US6612040||Nov 14, 2002||Sep 2, 2003||The Gillette Company||Razors|
|US20050193572 *||Jan 7, 2005||Sep 8, 2005||The Gillette Company, A Delaware Corporation||Razors|
|US20070213742 *||Mar 8, 2007||Sep 13, 2007||Callahan Mark J||Surgical hair trimmer|
|US20080216324 *||Mar 8, 2007||Sep 11, 2008||Mark Tauer||Surgical hair trimmer|
|U.S. Classification||30/51, 30/530|
|International Classification||B26B21/08, B26B21/16|