US1554083A - Knife with separable blade - Google Patents

Knife with separable blade Download PDF

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Publication number
US1554083A
US1554083A US3159A US315925A US1554083A US 1554083 A US1554083 A US 1554083A US 3159 A US3159 A US 3159A US 315925 A US315925 A US 315925A US 1554083 A US1554083 A US 1554083A
Authority
US
United States
Prior art keywords
blade
handle
portions
pin
knife
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
US3159A
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English (en)
Inventor
Goldman Gustav
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
Priority to US3159A priority Critical patent/US1554083A/en
Priority to FR593109D priority patent/FR593109A/fr
Application granted granted Critical
Publication of US1554083A publication Critical patent/US1554083A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/3211—Surgical scalpels, knives; Accessories therefor
    • A61B17/3213—Surgical scalpels, knives; Accessories therefor with detachable blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17393—One movable side

Definitions

  • FIG. 1 is a side elevation of a knife embodying the invention
  • Fig. 2 is a top plan view thereof
  • Fig. 3 is a side elevation of one of the handle portions showing the means of as sembling the blade with relation thereto;
  • i-g. 4 is a vertical transverse section on the line 44 of Fig. 1;
  • Fig. 5 is a 5-5 of Fig. 1. i
  • Knives with Separable Blades which invention is fully set forth in the following lllS invention relates'to knives with removable, separable on interchangeable blades designed for surgical or other uses, and is an improvement on the structure shown, describedand claimed in U. S. Pat ent 1,506,897, dated Sept. 2, 1924.
  • the 1nterchangeable blades in knives of this character are of very thin sheets of metal and as they'are designed for uses such as surgical operations and the like.
  • the blades should be firmly held in post tion and absolutely restrained from any lateral or longitudinal play in the handl ence numerals indicate like parts throughportion of the knife.
  • 1 is the blade which
  • the handle is inthe form of thin sheet metal having its portion of the knife is composed of two longitudinal portionssecured together by a mortise and tenon construction, with the blade held between the two longitudinal throughout the greater portion of its length has approximately parallel sides, but which at its forward end 6 has an enlarged opening.
  • the handle of the knife as in the pat ent aforementioned, is composedof two longitudinal halves or members 7 and 8.
  • the handle member 7 is slightly cut away or recessed at its forward end portion 9, to a depth equal to the thickness of the blade 1, said cut-away portion having an upwardly. and forwardly inclined shoulder 10, and projecting laterally from said cut-away tudinal portions is provided with an overanging lateral flange extending at a right angle over the top of the other portion and serving as a finger rest in the use of the 'fe and an abutment against which the top of the blade reacts when cutting pres sure is applied to the knife. It has been found in practice that this leaves the blade free to have lateral play, particularly if the handle portion of the blade is moved to one side or the other in the cutting action.
  • One portion is a headed pin 11.
  • Th object of the present invention is to elim iof the forward portion of the nate this lateral play to the blade.
  • a further object of the invention is to assure such firm retention of the blade in position on the handle portion and at the same time provide handle portions' which may be manipulated with facility to assemble and disassemble the blade, but which may be retained. in assembled posi-' tion with such firmness that they cannot be slightly above the inner edge of this bevel 12, as indicated at 1 in Fig. 4.
  • the rearward portion of the handle member 7 is provided with a laterally extending pin 13 having an oblong rectangular-shaped head 13 with its longer dimension extending transversely of the handle member 7.
  • the handle member 8 forming the other longitudinal half of the handle, is provided with an oblong slot 14, the rear end of which section in plan on the line e upper edgehandle mem-' the top of the blade preferably extends very posite the bevel 12 thereon,
  • the outer surface of the handle member 8, adjacent the pin 13, is slightly inclined, as clearly shown at 8 in Fig. 5, the handle member being thicker at the rear end of the slot 14 than at the forward end, and the thickness of said member at the rear end being such that it slides under the head 13 with close frictional engagement.
  • the forward portion of the handle member 8 is provided with alaterally and downs 15, which flange, on its under side immediately opposite the blade 1, may be slightly grooved to receive the upper edge portion of ,the blade, and
  • the forward en of the handle member 8' is provided with a forwardly opening'slot 17 having a downwardly and outwardly inclined cam surface portion 17 on-its forwardlower edge.
  • This slot is so proportioned that when the parts are in the assembled position shown in Fig. 1, it engages the pin 11 with t e head of the pin fitting snugly against the outer surface of the handle me her 8 as'willbeclearlyunderstood. from an inspection of Fig. 4.
  • thehandle portion 8 is moved rearward until the slot 17 disengages from the pin 11, when the handle portion 8 may be-turned upon the pin 13 as shown in dotted lines in Fig.
  • the handle member '8 is then turned downwardly, turning around the pin 13 until the flange 15 is brought down upon the top of the blade and the top of the beveled portion 12 of the handle member 7, and the handle member 8 is then moved forward until'the rear end of the slot 17 en.- gages the pin 11.
  • the head of the pin engages with the outer surface of the handle member 8.
  • the flange 15 is drawn forcibly and firmly downward into engagement wit the blade 1 and by the engagfmentof the be'velexl portion 16 on said andle memberB with the beveled face 12 on the handle member 7 the two members are drawn into firm engagement with is desired to completely is beveled "from I downwardly that when said parts 12 is snugly'em.
  • the invention provi both sides of the blade and retained so that the parts may the under side of the with the under side of the blade to eitherside,
  • a handle divided into two. longitudinally extenda haning parallel halves or portions one of wh chand at the ific description of the invention portion, a blade'between said nally grooved'onits under surface, a blade between said portions with its upper edge in the groove of said flange, and means forcing the upper edge of the blade into the said groove by relative longitudinal movement of said handle portions.
  • a hand dle divided into two longitudinally extending parallel halves or portions one of which is beveled on its upper forward edge and the other of which is provided with alateral downwardly extending flange beveled on its under surface, a blade between said portions, and a cam-acting pin and slot connection between said handle. portions forcing said beveled surfaces into cooperative relation to clamp saidblade.
  • a handle divided into two longitudinally extending parallel halves or portions, pin and slot connections between said portions, a blade clamped between said portions ward ends, a flange on one portion overhanging said blade and the upper edge of the force said handle lower edge of at their fora other portion, and cooperating cam surfaces on sald upper edge and on said flange to portions into close clamping engagement with the blade.
  • a ha r dle divided into two longitudinally extending parallel halves or portions, pin and slot connections between said portions whereby they may have relative longitudinal movement, a blade clamped between the forward ends of said handle portions, a flange on the forward end of one of said portions overhanging the upper edge of the forward end a of the other portion, and cooperating cam surfaces on said portions to force them into clamping engagement.
  • a hanle divided into two longitudinally extending parallel halves or tween the forward ends of said portions, a headed pin on one portion and passing through an opening in said blade and through a slot in the other portion the outer surface of which passes under and engages the head of said pin, a cam surface. on the said slot engaging sald pin, and a second headed pin near the rear end of one of the handle portions and passing through a slot in the other portion the under side of the head of said pin engaging an inclined wedge-like surface on the outer face of said last-named handle portion.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Knives (AREA)
US3159A 1925-01-17 1925-01-17 Knife with separable blade Expired - Lifetime US1554083A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US3159A US1554083A (en) 1925-01-17 1925-01-17 Knife with separable blade
FR593109D FR593109A (fr) 1925-01-17 1925-02-09 Perfectionnements aux couteaux et bistouris à lames amovibles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3159A US1554083A (en) 1925-01-17 1925-01-17 Knife with separable blade

Publications (1)

Publication Number Publication Date
US1554083A true US1554083A (en) 1925-09-15

Family

ID=21704464

Family Applications (1)

Application Number Title Priority Date Filing Date
US3159A Expired - Lifetime US1554083A (en) 1925-01-17 1925-01-17 Knife with separable blade

Country Status (2)

Country Link
US (1) US1554083A (fr)
FR (1) FR593109A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556036A (en) * 1949-07-02 1951-06-05 Harlan E Jensen Animal ear trimmer
US5060387A (en) * 1990-11-13 1991-10-29 Becton, Dickinson And Company Blade handle
US5146685A (en) * 1990-11-13 1992-09-15 Becton, Dickinson And Company Multi-dimensional surgical blade holder and blade combination
US5272812A (en) * 1990-11-13 1993-12-28 Becton, Dickinson And Company Surgical blade holder and blade combination
USD998426S1 (en) * 2020-12-18 2023-09-12 Hunan Yinsun Bamboo Industry Co., Ltd. Knife

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556036A (en) * 1949-07-02 1951-06-05 Harlan E Jensen Animal ear trimmer
US5060387A (en) * 1990-11-13 1991-10-29 Becton, Dickinson And Company Blade handle
US5146685A (en) * 1990-11-13 1992-09-15 Becton, Dickinson And Company Multi-dimensional surgical blade holder and blade combination
US5272812A (en) * 1990-11-13 1993-12-28 Becton, Dickinson And Company Surgical blade holder and blade combination
US5430942A (en) * 1990-11-13 1995-07-11 Becton Dickinson And Company Surgical blade holder and blade combination
USD998426S1 (en) * 2020-12-18 2023-09-12 Hunan Yinsun Bamboo Industry Co., Ltd. Knife

Also Published As

Publication number Publication date
FR593109A (fr) 1925-08-17

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