US1791552A - Safety razor - Google Patents

Safety razor Download PDF

Info

Publication number
US1791552A
US1791552A US422798A US42279830A US1791552A US 1791552 A US1791552 A US 1791552A US 422798 A US422798 A US 422798A US 42279830 A US42279830 A US 42279830A US 1791552 A US1791552 A US 1791552A
Authority
US
United States
Prior art keywords
blade
body portion
holder
safety razor
tongues
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US422798A
Other languages
English (en)
Inventor
Thomas W Bigoney
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ENDERS RAZOR Co Inc
ENDERS RAZOR COMPANY Inc
Original Assignee
ENDERS RAZOR Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ENDERS RAZOR Co Inc filed Critical ENDERS RAZOR Co Inc
Priority to US422798A priority Critical patent/US1791552A/en
Priority to GB1008/31A priority patent/GB367117A/en
Priority to DEE40523D priority patent/DE575890C/de
Application granted granted Critical
Publication of US1791552A publication Critical patent/US1791552A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B26B21/16—Safety razors with one or more blades arranged transversely to the handle involving blades with only one cutting edge

Definitions

  • This invention relates to safety razors and lncludes a novel blade constructlon which functions 1n a unlque and very efiectlve manner to secure the blade inshaving relation with appropriate blade holding and guarding means which is itself also novel.
  • the objects of'the invention are, rovide a shaving edge which may, very rap- 1dly and with extreme convenience, be renm dered ready for safeshaving use, and, second, to make the design and construction of blade and auxiliary means conducive to economic and-precise manufacture.
  • the new and additional properties of my improved blade may be secured without any manufacturing operations additional to or basicly different from those commonly employed in safety razor blade construction.
  • the handle is formed of the usual tubular and die-cast members and is secured to the blade receiving head preferably by riveting.
  • This head may be produced, complete, by
  • FIGs. 1, 2 and 3 are, respectively, top, bottom and side views of the blade and holder the necessarily precise relation of the several members of the head is established by with normally hidden portions of the blade indicated in dotted lines,
  • Fig. 4 is a rear view showing a partial section on line H of Fig. 1
  • Fig. .5 is a front view of the combination shown in the preceding views
  • Fig. 6 is a plan view of the blade
  • Fig. T is, an end yiew of the blade.
  • Fig. 8 represents diagrammatically the tension action of the blade in the holder, the essential parts merely being indicated, and in broken section.
  • FIG. 6 The embodiment of my blade which so far I have found to be the most satisfactory and eflicient is illustrated for example in Fig. 6.
  • This has abody portion or blade proper 11 provided with a forward cutting edge 12 and one or more tension members integral therewith, which in the illustrated embodiment are spring tongues 13, 13 at either side of the body portion or blade proper and which may be spaced therefrom as indicated at 14, and extend from the back toward the cutting edge as shown.
  • the slenderness of the tongues 1313 and the resulting relatively small resistance of their mass compared to that of the body portion 11 makes possible the independent flexure of the tongues transversely of the blade without material flexure of the body portion of the blade.
  • This quality of the tongues 13-13 allows them forcibly to be flexed out of their normal plane which is that.
  • the blade holder has a head and a handle preferably riveted together as shown.
  • the integrally formed head is provided with an upper wall 15, the end walls 2020 and the end walls 23-23, a front wall 18 constituting a comb guard, and the lower handle receiving flange 21.
  • the front edge of the top wall 15 is spaced from the top of the comb guard 18 by the slot 22 and shoulders 17-17 are formed at each end of the top wall 15 joining the respective end walls 2020 with the respective end walls 22-22.
  • shoulders 1717 form inclined slideways or cam surfaces upon which ride the tongues 1313 of the blade when it is inserted.
  • the length of the body portion 11 of the blade is accommodated, with a slight clearance, between the inner faces of the end walls 2020 and these end walls serve both as guides for the insertion of the blade and as stops to limit its endwise movement when inserted.
  • the blade is inserted by first placing the forward part of the body portion 11 against the inner face of the to wall 15 and then sliding the blade forward until the rearward limits of the recesses 14-44 engage the rear edges of the end walls 20-20.
  • This action forces the tongues 1313 up on the inclined slideways 17-17 to the position shown clearly in Fig. 3 and Fig. 8.
  • the flexure and resulting tension thus produced in the tongues 1313 has two important mechanical results: It removably secures the blade in shaving position and against accident disen "a ement and it forces up the front of the b y portion 11 of the blade tight against the front part of the inner face of the top wall 15 of the holder.
  • the depressed portions 1616 of the top wall 15 act as fulcrums for the essentially lever action.
  • the blade is withdrawn from the holder by grasping the blade at the rear where the top wall 15 has been indented to provide a thumb-hold.
  • the action either of inserting or withdrawing the blade is, obviously, instantaneous.
  • a safety razor blade having a front cutting edge and a rear blunt edge, and tongues relatively narrow in proportion to their length, extending from said rear edge toward said front edge outside the body portion of the blade.
  • a safety razor blade having a body portion with a front cutting edge, a rear blunt edge and opposed end edges, and portions spaced from said body portion extending from said rear edge toward said front edgelparallel to said end edges.
  • safety razor blade having a body portion with a front cutting edge, a rear blunt edge and opposed end edges, and having narrow projections joined to said bod portion adjacent said rear edge and'exten ing perpendicularly toward said cutting edge, the mass and hence the resistance to flexure of said projections being much less than that of said body portion.
  • a safety razor blade having a body portion presenting a cutting edge, and resilient tongues at the 'ends of said body portion and extending toward said cutting edge with their front ends relatively movable in respect to the body portion of the blade in a direction substantially at rlght angles to the plane of the blade. 7
  • a safety razor blade comprising a body portion with a cutting ed e and at each side of the body portion a flexi le tongue lntegral with the body portion and extending toward the cutting edge.
  • a safety razor blade comprising a body portion having a. cutting ed e and at each side of and outside of the body portion a flexible tongue extending toward the cutting edge, and a holder therefor provided with a seat for the blade and means adapted to engage and flex sa1d tongues and thereby cause said blade to be held upon the seat.
  • a safety razor blade holder having a blade seat onto which may be -slidesidewise' a razor blade which has a-body'portion provided with a cutting edge'and at each side I of and outside of the body portion a flexible .tongue extending toward the cutting edge,
  • said holder also comprising at each side a slidewayjadapted to engage the tongues of the blade and flex them automatically when the blade is slid sidewise onto the seat and therebycause them to hold the blade upon the seat.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Details Of Cutting Devices (AREA)
  • Sawing (AREA)
  • Sampling And Sample Adjustment (AREA)
US422798A 1930-01-23 1930-01-23 Safety razor Expired - Lifetime US1791552A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US422798A US1791552A (en) 1930-01-23 1930-01-23 Safety razor
GB1008/31A GB367117A (en) 1930-01-23 1931-01-12 Improvements in or relating to safety razors
DEE40523D DE575890C (de) 1930-01-23 1931-01-21 Rasierhobelklinge mit einer Schneidkante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US422798A US1791552A (en) 1930-01-23 1930-01-23 Safety razor

Publications (1)

Publication Number Publication Date
US1791552A true US1791552A (en) 1931-02-10

Family

ID=23676423

Family Applications (1)

Application Number Title Priority Date Filing Date
US422798A Expired - Lifetime US1791552A (en) 1930-01-23 1930-01-23 Safety razor

Country Status (3)

Country Link
US (1) US1791552A (de)
DE (1) DE575890C (de)
GB (1) GB367117A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580058A (en) * 1946-11-15 1951-12-25 Durham Enders Razor Corp Safety razor
USD875315S1 (en) * 2018-04-13 2020-02-11 Best Buy Imports, Inc. Razor handle
USD875314S1 (en) * 2018-04-13 2020-02-11 Best Buy Imports, Inc. Razor handle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580058A (en) * 1946-11-15 1951-12-25 Durham Enders Razor Corp Safety razor
USD875315S1 (en) * 2018-04-13 2020-02-11 Best Buy Imports, Inc. Razor handle
USD875314S1 (en) * 2018-04-13 2020-02-11 Best Buy Imports, Inc. Razor handle

Also Published As

Publication number Publication date
GB367117A (en) 1932-02-18
DE575890C (de) 1933-05-04

Similar Documents

Publication Publication Date Title
US3171201A (en) Razor blade holders
US2320807A (en) Shaver head guard
US1791552A (en) Safety razor
US1904572A (en) Loose leaf binder and holder for writing implements
US2405509A (en) Slider for separable fasteners
US3983627A (en) Interchangeable blade type razor
US3892036A (en) Safety razor
US968428A (en) Safety-razor.
US2164820A (en) Attachment for electric razors
US2035110A (en) Safety razor blade
US2118498A (en) Safety razor
US1991289A (en) Razor with blade adapter
US1847556A (en) Safety razor
US2268058A (en) Knife
US2474425A (en) Cutlery construction
US2055837A (en) Safety razor
US1906808A (en) Separable fastener
US1821137A (en) Holder for mirrors
US449499A (en) schmachtenberg
US1416892A (en) Tukiisror cqmpasty
US2036749A (en) Razor
US2264452A (en) Knife
US2475725A (en) Thread guide
US2052665A (en) Loose leaf binder construction
US2033262A (en) Safety razor