US1765805A - Safety razor - Google Patents

Safety razor Download PDF

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Publication number
US1765805A
US1765805A US17061A US1706125A US1765805A US 1765805 A US1765805 A US 1765805A US 17061 A US17061 A US 17061A US 1706125 A US1706125 A US 1706125A US 1765805 A US1765805 A US 1765805A
Authority
US
United States
Prior art keywords
blade
plate
edge
edges
rim
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
US17061A
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English (en)
Inventor
Schlussler Alfred
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US1765805A publication Critical patent/US1765805A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B26B21/18—Safety razors with one or more blades arranged transversely to the handle involving blades with two cutting edges

Definitions

  • My improved razor is distinguished, in general, by the feature that it answers all requirements above mentioned, and in particular the gist of the invention consists therein that the upper clamping plate is provided either at only one of its two longitudinal rims, orat both, with channel-like recesses, by which the respective rim is provided with two edges, an outer one and an inner one, the outer being more remote from the lower clamping plate than is the inner edge ind the position of the two edges being such that when the upper clamping-plate is tightly drawn home against the lowerv one the cutting-edge of the blade clamped in between the two plates does not contact with the outer ed e of the upper clamping-plate butcan yielf relatively thereto in that there is a gap between that edge and the cutting edge of the blade.
  • Figure 1 is a side-view of the head of a safety-razor constructed according to this invention, the figure being and the handle-parts which are shown in axial section being broken ofl;
  • Figure 2 is a similar View, the upper clamping-plate and the'blade being shown in another position and the handle-parts being entirely removed;
  • Figure 3 is a cross-section through a modified upper clamping-plate, and
  • Figure 4 is a side-view of a modification of the entire razor, chiefly, however, of the lower clamping-plate.
  • the upper clamping-plate 1 is pressed onto the blade-4 and the lower clamping-plate 9 in known manner by suitably devised threaded mem-' bers either of the kind shown in Fig. '1 or of any other kind. I abstain from enteringinto details in this respect as these members do not form part of the invention.
  • the outer surface of the plate -9 and the inner surface of' the plate 1 are bent circularly in known manner, as is, of course, also the blade when being clamped in.
  • the plate 1' is provided at either of its longitudinal edges with a channel-like recess 1" whereby an inner edge 2 and an outer edge 3 are formed.
  • the edge 2 contacts always with the blade 4, but the edge 3 only when the plate 1 hasbeen moved away a little from the plate 9, as in Fig. 2.
  • the channel or recess 1 forms a gap between the rim of the plate 1 and the rim of the blade, in consequence whereof the blade-rim, or the cutting-edge drawn to 'a greatly enlarged scale;
  • t e plate 9 In the exam 2 one side of t e plate 9 is provided with a channel 6, the outer ed e 5 of which lies below the cutting-edge o the blade, or, more precisely, behind, but near it. In other m words: the blade-rim covers that channel completely.
  • This constructional form of the razor affords that advantage over the other form (lefthand half of Fig. 1) that the cutofi articles of hair do not gather below' the bla e-rim and impede its elasticity.
  • the two edges 2 and 3 of, or at, the upper clamping plate 1 are formed by a se arate late 8.
  • This constructional form disc osed t e possibility of changing existing safety-razors into such'with two edges 2 and 3 according to this invention.
  • the upper clamping-plate is provided with a large lower recess 12, and the lower clamping-plate with a large upper recess 14, and the blade is held merely between ledges 10 and 15, of which the projections 10 are practically of angular cross-section with rounded-oil supporting-edges for the blade, whereas the proections 15 are practically flat; their faces lie obliquely with respect to the axis of the razor and thelr position relatively to one another is such that the blade is curved circularly as in Fig. 1.
  • the elasticity of the blade-runs, or of the cutting-edges respectively, in the direction to the edges 3 is in this constructional form greater than in Fig. 1, because also the middle part of the blade can give way (in the direction to the handle). In all other respects matters are as described with respect to the other constructional forms shown and described.
  • the rims of the lower clamping-plate 7 are, of course, provided in known manner with many parallel incisions whereby each rim is turned into a kind of comb.
  • Each incision communicates at its inner end with the channel 6 (Figs. 1 and 2).
  • the parallel incisions extend obliquely; in other words: each incision forms a narrow channel having an oblique bottom 11 (Fig. 4) terminating at the lowermost point 13 where there now exists a continuous edge by which the superfluous soapfroth is removed from the skin.
  • the cut-off particles of hair get easily into the recess 14 through the gaps between the comb-forming members at the inner ends 1e illustrated in Figs. 1 and thereof.
  • the edge 13 which is free from hairparticles may be used over again.
  • the lefthand and the righthand .half of the razor will be made alike, but if desired or for certain cases they may be different one being then of the known usual construction, the other of the improved construction, either according to Figs. 1 and 2, or according to Fig. 4.
  • edge 2 forms a 'nd 0 ledge between the concave face of the upper clamping-plate and the recess 1; it is, in general, sufficient if it is actually a mere e ge between that face and', the slightly curved or, perha s, even plain surface extending from it to t e edge 3.
  • a safety razor comprising in combina-, tion an elastlc blade, a lower clamping plate having a convex upper surface, an upper clamping plate having a concave lower surface concentric with said convex surface, the concave surface of said upper clamping plate being undercut along its edges so that two contact strips are formed along each edge,
  • upper clamplng plate having a concave a lower clamping lower surface concentric with said convex surface, the concave 'surface of said upper clamping plate being undercut along its edges so that two contact strips are formed along'each edge, the outer strip extending to a greater radial distance from the centre about which said surfaces are curved, than the inner strip and said upper and lower surfaces being partly cut away at the rear of said inner strlps so as to constitute a pair.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Knives (AREA)
US17061A 1924-03-22 1925-03-20 Safety razor Expired - Lifetime US1765805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE231177X 1924-03-22

Publications (1)

Publication Number Publication Date
US1765805A true US1765805A (en) 1930-06-24

Family

ID=5874309

Family Applications (1)

Application Number Title Priority Date Filing Date
US17061A Expired - Lifetime US1765805A (en) 1924-03-22 1925-03-20 Safety razor

Country Status (4)

Country Link
US (1) US1765805A (cs)
FR (1) FR595238A (cs)
GB (1) GB231177A (cs)
NL (1) NL18263C (cs)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712178A (en) * 1949-08-10 1955-07-05 Marzio Arnaldo Safety razor having flexible blade
US3129508A (en) * 1962-05-25 1964-04-21 Winifred M Colombo Safety-razor having cooperating means on the cap and guard to adjust the blade cutting edges
WO2016037265A1 (en) * 2014-09-12 2016-03-17 Rockwell Razors Corporation Modular safety razor with adjustable blade angle
USD788367S1 (en) 2015-09-11 2017-05-30 Rockwell Razors Corporation Safety razor base plate
US10807256B2 (en) 2014-09-12 2020-10-20 Rockwell Razors Corporation Modular safety razor with adjustable blade angle

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712178A (en) * 1949-08-10 1955-07-05 Marzio Arnaldo Safety razor having flexible blade
US3129508A (en) * 1962-05-25 1964-04-21 Winifred M Colombo Safety-razor having cooperating means on the cap and guard to adjust the blade cutting edges
WO2016037265A1 (en) * 2014-09-12 2016-03-17 Rockwell Razors Corporation Modular safety razor with adjustable blade angle
US9505142B2 (en) * 2014-09-12 2016-11-29 Rockwell Razors Corporation Modular safety razor with adjustable blade angle
CN107107357A (zh) * 2014-09-12 2017-08-29 洛克威尔剃须刀公司 刀片角度可调节的模块化安全剃须刀
AU2015316125B2 (en) * 2014-09-12 2018-11-29 Rockwell Razors Corporation Modular safety razor with adjustable blade angle
AU2015316125C1 (en) * 2014-09-12 2019-04-04 Rockwell Razors Corporation Modular safety razor with adjustable blade angle
RU2701804C2 (ru) * 2014-09-12 2019-10-01 Роквелл Рейзерс Корпорейшн Модульная безопасная бритва с регулируемым углом лезвия
CN107107357B (zh) * 2014-09-12 2020-04-14 洛克威尔剃须刀公司 刀片角度可调节的模块化安全剃须刀
US10807256B2 (en) 2014-09-12 2020-10-20 Rockwell Razors Corporation Modular safety razor with adjustable blade angle
USD788367S1 (en) 2015-09-11 2017-05-30 Rockwell Razors Corporation Safety razor base plate

Also Published As

Publication number Publication date
FR595238A (fr) 1925-09-29
GB231177A (en) 1925-09-17
NL18263C (cs)

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