US1374289A - Paring and pitting knife - Google Patents

Paring and pitting knife Download PDF

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Publication number
US1374289A
US1374289A US273591A US27359119A US1374289A US 1374289 A US1374289 A US 1374289A US 273591 A US273591 A US 273591A US 27359119 A US27359119 A US 27359119A US 1374289 A US1374289 A US 1374289A
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United States
Prior art keywords
knife
paring
pitting
slide
pitting knife
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Expired - Lifetime
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US273591A
Inventor
Samuel J Dunkley
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DUNKLEY Co
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DUNKLEY Co
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Publication date
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Priority to US273591A priority Critical patent/US1374289A/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J23/00—Devices for stoning fruit

Definitions

  • This invention relates to an improved paring and pitting knife.
  • the object of the invention is to provide an improved oscillatory cutting knife for the pitting and paring of fruit.
  • Figure I is a longitudinal detail sectional view through a paring and pitting knife structure embodying the details of my invention, some of the parts being shown in full lines.
  • Fig. II is a detail transverse sectional view on the line 2-2 of Fig. I.
  • Fig. III is a detail transverse sectional view on line 33 of Fig'. I. r
  • Fig. IV is a detail view of a straightedged knife with a guard.
  • Fig. V is a transverse detail sectional view of the knife, taken on line 5-5 of Fig. IV.
  • Fig. VI is an enlarged detail view of a portion of the blade 11 showing its serrations. 1
  • similar numbers of reference refer to similarparts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.
  • 1 is the handle for the tool. Axially disposed in the end of this handle is a slide 2 having a stem 3 which extends through the bracket 4 into a bearing 5 at the opposite end.
  • This slide is provided with collars 6, 6 on its stem and is caused to reciprocate by rotation of the shaft 7 which is provided with a disk 8 at its end provided with a wrist pin 9 which extends into and engages between the collars 6, 6.
  • the shaft 7 is provided with suitable connection 10 to ,a flexible shaft or other suitable driving means.
  • a parin and pitting knife In a parin and pitting knife, the combination of a andle, a slide axially disposed within the handle and a means to reciprocate the slide, and a curved knife axially disposed to said handle and carried by said slide and adapted to be reciprocated thereby,

Description

S. J. DUNKLEY.
PARING AND FITTING KNIFE.
APPLICATION FILED 1AN.28.1919.
1,374,289. Patented Apr-12,1921.
SAMUEL J. DUNKLEY UNITED STATES PATENT OFFICE.
SAMUEL J DUN'KLEY, OF KALAMAZOQ, MICHIGAN, ASSIGNOR 'I'O DUNKLEY COMPANY, OF KALAMAZOO, MICHIGAN, A'CORPORATION OF MICHIGAN.
PARING AND FITTING KNIFE.
Specification of Letters Patent.
- Patented Apr. 12, 1921.
To all whom it may concern:
Be it known that I, SAMUEL J. DUNKLEY, a citizen of the United States, residing at Kalamazoo, Michigan, have invented certain new and useful Improvements in Paring and Pitting Knives, of which the following is a specification. v
This invention relates to an improved paring and pitting knife. The object of the invention is to provide an improved oscillatory cutting knife for the pitting and paring of fruit.
Objects of the invention pertaining to details and economiesof construction and operation will definitely appear from the detailed description to follow.
I accomplish the objects of my invention by the devices and means described in the following specification. The invention is clearly defined and pointed out in the claim.
A structure which is a preferred embodiment of my invention is fully illustrated in the accompanying drawing, forming a part of this specification, in which:
Figure I is a longitudinal detail sectional view through a paring and pitting knife structure embodying the details of my invention, some of the parts being shown in full lines.
Fig. II is a detail transverse sectional view on the line 2-2 of Fig. I.
Fig. III is a detail transverse sectional view on line 33 of Fig'. I. r
Fig. IV is a detail view of a straightedged knife with a guard.
Fig. V is a transverse detail sectional view of the knife, taken on line 5-5 of Fig. IV.
Fig. VI is an enlarged detail view of a portion of the blade 11 showing its serrations. 1 In the drawing similar numbers of reference refer to similarparts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.
Considering the numbered parts of the drawing, 1 is the handle for the tool. Axially disposed in the end of this handle is a slide 2 having a stem 3 which extends through the bracket 4 into a bearing 5 at the opposite end. This slide is provided with collars 6, 6 on its stem and is caused to reciprocate by rotation of the shaft 7 which is provided with a disk 8 at its end provided with a wrist pin 9 which extends into and engages between the collars 6, 6. When the the shaft 7 is revolved, the action of thepin 9 between the collars 6, 6 causes the reciprocation. The shaft 7 is provided with suitable connection 10 to ,a flexible shaft or other suitable driving means.
(In the reciprocating slide 2 is supported the curved knife 11 which is provided with a straight shank 12 and is retained in a socketfinthe end of the slide 2 by set screw 13. The edge of this knife is serrated. The shaft? is caused to revolve, preferably, at the rate of about 1800 revolutions per minute, so that the knife 11 vibrates very rapidly. It is found that this is a very effective device for removing pits and'cores from fruit and for any purpose of that kind. By substituting the straight knife 14 with a guard 15, the knife is very effective for the peeling of pears or of any hard fruit, as green peaches and the like, or for any use where a straight knife is needed. The reciprocation greatly enhances the cutting quality. The knife has the effect of seeming to be very sharp. I
I have thus described the preferred means for inducing the reciprocation, but it is very clear that various means might be provided for the purpose and I wish to claim my invention broadly as well as specifically, as indicated in the appended claims.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: I
In a parin and pitting knife, the combination of a andle, a slide axially disposed within the handle and a means to reciprocate the slide, and a curved knife axially disposed to said handle and carried by said slide and adapted to be reciprocated thereby,
as specified.
In witness whereof, I have hereunto set my hand and seal in the presence of two I witnesses. 7 SAMUEL J. DUNKLEY.
Witness LUELLA G. GREENIIELD, MARTHA J. Garcon.
[ L. s.] I
US273591A 1919-01-28 1919-01-28 Paring and pitting knife Expired - Lifetime US1374289A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958355A (en) * 1957-10-24 1960-11-01 Everett C Young Potato peeler
DE1214899B (en) * 1962-06-16 1966-04-21 Crown Cork & Seal Co Device for guiding and tensioning a tape, which acts as a transparent window and protects an optical measuring device against contamination
US4885182A (en) * 1988-06-03 1989-12-05 The Proctor & Gamble Company Method of and apparatus for extracting juice and meat from a fruit
US4937088A (en) * 1988-12-29 1990-06-26 The Procter & Gamble Company Method of and apparatus for extracting juice and meat from a fruit
US5937524A (en) * 1997-10-14 1999-08-17 Hornsby; Colby Tool for cutting melon from rind
US6629980B1 (en) * 2000-11-28 2003-10-07 The Regents Of The University Of Michigan Instrument and method for creating an intraocular incision
US20040116950A1 (en) * 2000-11-28 2004-06-17 The Regents Of The University Of Michigan Instrument and method for creating an intraocular incision
US7020968B1 (en) * 2003-09-18 2006-04-04 Abdel-Dayem Bassam A Fruit and vegetable coring machine
US20110011280A1 (en) * 2009-07-09 2011-01-20 Hawker Christopher L Hand tool for stuffing pitted or cored produce

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958355A (en) * 1957-10-24 1960-11-01 Everett C Young Potato peeler
DE1214899B (en) * 1962-06-16 1966-04-21 Crown Cork & Seal Co Device for guiding and tensioning a tape, which acts as a transparent window and protects an optical measuring device against contamination
US4885182A (en) * 1988-06-03 1989-12-05 The Proctor & Gamble Company Method of and apparatus for extracting juice and meat from a fruit
US4937088A (en) * 1988-12-29 1990-06-26 The Procter & Gamble Company Method of and apparatus for extracting juice and meat from a fruit
US5937524A (en) * 1997-10-14 1999-08-17 Hornsby; Colby Tool for cutting melon from rind
US6629980B1 (en) * 2000-11-28 2003-10-07 The Regents Of The University Of Michigan Instrument and method for creating an intraocular incision
US20040116950A1 (en) * 2000-11-28 2004-06-17 The Regents Of The University Of Michigan Instrument and method for creating an intraocular incision
US7020968B1 (en) * 2003-09-18 2006-04-04 Abdel-Dayem Bassam A Fruit and vegetable coring machine
US20110011280A1 (en) * 2009-07-09 2011-01-20 Hawker Christopher L Hand tool for stuffing pitted or cored produce
US8567309B2 (en) * 2009-07-09 2013-10-29 Christopher L. Hawker Hand tool for stuffing pitted or cored produce

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