US2811073A - Three legged staple - Google Patents

Three legged staple Download PDF

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Publication number
US2811073A
US2811073A US494747A US49474755A US2811073A US 2811073 A US2811073 A US 2811073A US 494747 A US494747 A US 494747A US 49474755 A US49474755 A US 49474755A US 2811073 A US2811073 A US 2811073A
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US
United States
Prior art keywords
legs
wire
staple
length
leg
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
US494747A
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English (en)
Inventor
Klopstock Hans
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.)
LINDSAY STEVENS CARSTAIRS
Original Assignee
LINDSAY STEVENS CARSTAIRS
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 LINDSAY STEVENS CARSTAIRS filed Critical LINDSAY STEVENS CARSTAIRS
Application granted granted Critical
Publication of US2811073A publication Critical patent/US2811073A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F7/00—Nailing or stapling; Nailed or stapled work
    • B27F7/17—Stapling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F45/00—Wire-working in the manufacture of other particular articles
    • B21F45/16—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes
    • B21F45/24—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes of staples; of belt-fastening elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B15/00—Nails; Staples
    • F16B15/0015—Staples
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B15/00—Nails; Staples
    • F16B15/08—Nails; Staples formed in integral series but easily separable
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/92—Staple

Definitions

  • the present invention relates to staples, and more particularly to staples of the kind that are forced or .driven into Wood and similar material bymeans of a stapling machine or gun.
  • Heavy duty staplesof the aforesaid kind are widely used, for instance, in the furniture and upholstery fields. They are also'frequently used for such purposes as binding the edges of boxes and crates.
  • staples used to staple together several sheets of paper 'or'other easily pierceable material and relying for anchorage primarily upon bending over the protruding portions of the staple legs heavy duty staples of the generalikind above referred to, must penetrate into comparatively hard material with the full length of the legs and rely for anchorage upon the areas of contact between the legs and the penetrated material.
  • the stapled' material such as fabric is strongly secured to its support such as a furniture frame, or in other words, that the ipull-out forcenecessary to pull the'staple out of the wood or other materialis-compar'atively high.
  • the material from whichthe s taples are made must be light for reasons of economy,,,to permit stapling with a simple hand operated stapling machine and to make the staples inconspicuous.
  • the principal object of the present invention is to provide a novel and improved staple of the general type above referred to, which can be readily forced or driven into comparatively hard material such as wood and'which due to its design is strongly retained in the material.
  • Another object of the invention is to provide a novel and improved staple design which combines excellent holding properties with strength so that the legs of a staple made of comparatively thin wire can be driven with the full length of the staple legs into the material without danger of crumbling of the legs.
  • Still another object of the invention is to provide a novel and improved staple which is so designed that when the staple is driven into the material the staple legs experience deformation such that the strength of the anchorage of the staple within the material is materially increased, or more specifically that the legs are keyed into the material.
  • Fig. 1 is an elevational side view of a staple according to the invention.
  • Fig. 2 is a section of wood and fabric material stapled together by a staple as shown in Fig. l, and
  • tate Pa o Fig.3 is a bank of staples as shown in Fig. 1 for use in a stapling machine or gun.
  • the staple as exexemplified in this figure is formed from a single length of metal 'wire, the term wire as herein used being intended to include also a narrow metal strip.
  • the stapleas shown has three substantially parallel legs 1, 2 and 3, preferably equally spaced, The three legs are of the same length and lie at right anglesto connecting crown or top parts 4 and 5.
  • the two outer legs are formed by a single thickness of a bent-off wire portion.
  • the intermediate or central leg 2 is of double thickness of wire resulting from doubling up the wire.
  • the wire portions 2' and 2" are so bent that they form two continuous shanks of equal length and a shallow loop or bulbous portion the widest portion of which is at the tip of the leg and which is closed toward the base of the leg where it joins top parts 4- and 5.
  • the outer legs 1 and 3 may be pointed at tips 1' and 3 respectively whereas the tip of leg 2 is left blunt. A point having an angle of 90 has been found suitable.
  • central leg 2 is of greater strength than outer legs 1 and 3, it has a larger area of contact than the outer legs and it presents more resistance to being driven into material than the outer legs. , The purpose of these difierences between the outer legs and the central leg will become apparent from the subsequent'description.
  • Staples according to Fig. 1 may be produced by cutting a suitable length of wire from a supplyreel of such wire.
  • a forming blade may descend centrally on the length to bendthe central part thereofso as to form the double thickness leg 2. Simultaneously or subsequently the ends of the length are bent outwardly. by known means to form legs "1 and 3.
  • staples When manufactured for use in staple machine s, staples are glued or frozen together side by side for example; with an adhesive in customary manner to' form a bank" of staples as shown in Fig. 3 that can be fed into a stapling machine for single ejection from the machine into the place of application.
  • a staple as shown in Fig. 1 is driven by a suitable'stapling machine into a wooden block or bar 6 which may be visualized as part of a fur-f niture frame for stapling thereto two fabric layers 7 and 8'.'
  • the stapling machine will exert a substantially uniform pressure upon the entire crown or top bar 4, 5 of the staple.
  • Legs 1 and 3 consisting of a single more or less pointed length of wire offer less resistance to penetration into the wood than leg 2 being made of a double length of wire and having a blunt tip.
  • the base or root of leg 2 constitutes in effect a fulcrum for two levers formed by parts 4 and 5 and legs 1 and 3 depending therefrom.
  • legs 1 and 3 tend to be turned slightly inwardly and the loop of leg 2 is slightly widened, particularly near the tip of the leg.
  • Fig. 2 clearly shows the positions actually occupied by the legs of a staple driven into wood.
  • leg 2 remains wider than the part of the loop facing the base of the leg. Nevertheless, the leg remains in tight frictional contact with the surrounding wood along its entire length due to the self-sealing properties of wood and similar material.
  • a heavyduty staple for use in stapling machines comprising a length of wire of uniform thickness throughout its length, said wire forming three depending, legs joined by wire portions disposed -at' a substantially "right angle with the legs, two of said legs being in the form ofa single wire portion at each end of the wire and the third leg beingdisposed intermediate the end legs and in the form of a'doubled-up wire portion comprising two substantially straight parallel shanks contiguous throughout their length and of equal length but curved at the tip of the leg outwardly in the longitudinal plane of the staple to define a bulbous tip portion having an outer width in that plane in excess of the combined cross-sectional width of said straight shanks.
  • a heavy duty staple for use in stapling machines comprising a length of wire of uniform thickness throughout its length, said wire forming three depending legs angle with the legs, two of said legs being in the form of a single wire portion at each end of the wire and the third leg being disposed intermediate the end legs and in the form of a doubled-up wire portion, said doubled-up wire portion comprising two substantially straight parallel shanks depending from said joining wire portions contiguous throughout their length and of equal length but spread apart at the tip end of the third leg to form a bulbous configuration laterally extending in the longitudinal plane of the staple.
  • a heavy duty staple for use in stapling machines comprising a length of wire of uniform thickness throughout its length, said .wire forming three depending legs joined by wire portions disposed at a substantially right joined by wire portions disposed at a substantially right angle with the legs, two of said legs being in the form of a single wire portion at each end of the wire and the third leg being disposed intermediate the end legs and in the form of a doubled-up wire portion comprising two substantially straight parallel shanks contiguous throughout their length and of equal length but curved at the tip of the leg outwardly in the longitudinal plane of the staple to define a bulbous tip portion having an. outer width in that plane in excess of the combined crosssectional width of said straight shanks, said outer legs having pointed tips and the bulbous tip of.
  • a heavy'duty staple for use in stapling machines comprising a length of wire of uniform thickness throughout its length, said wire forming three depending legs joined by wire portions disposed at a substantially right angle with the legs, two of said legs being in the form of a single wire portion ateach end of the wire and the third leg being disposed intermediate the end legs and in the form of a doubled-up wire portion, said doubled-up wire portion comprising two substantially straight parallel shanks depending from said joining wire portions con tiguous throughout their length and of equal length but spread apart at the tip end of the third leg to form a bulbous configuration laterally extending in the longitudinal plane of the staple, said three legs being of substantially equal length.
  • a heavy duty staple for use in stapling machines comprising a length of wire of uniform thickness throughout its length, said wire forming three depending legs joined by wire portions disposed at a substantially right angle with the legs, two of said legs being in the form of a single wire portion at each end of the wire and the thirdleg being disposed intermediate the end legs and in the form of a doubled-up wire portion, said doubled-up wire' portion comprising two substantially straight parallel shanks depending from said joining wire portions contiguous throughout their length and of equal length but spread apart at the tip end of the third leg to form 'a' bulbous configuration laterally extending in the Iongitudinal plane of the staple, said three legs being of substantially equal length, the two outer legs having pointed tips and the intermediate leg having a blunt tip relative'to said tip end to form a bulbous tip, all three legs being oil equal length and disposed in parallel relationship.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Adhesive Tapes (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Wire Processing (AREA)
US494747A 1950-10-31 1955-03-16 Three legged staple Expired - Lifetime US2811073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26554/50A GB690446A (en) 1950-10-31 1950-10-31 Improvements in staple-tacks or nails

Publications (1)

Publication Number Publication Date
US2811073A true US2811073A (en) 1957-10-29

Family

ID=33156119

Family Applications (1)

Application Number Title Priority Date Filing Date
US494747A Expired - Lifetime US2811073A (en) 1950-10-31 1955-03-16 Three legged staple

Country Status (7)

Country Link
US (1) US2811073A (is")
BE (1) BE506506A (is")
CH (1) CH294078A (is")
DE (1) DE906870C (is")
FR (1) FR1043841A (is")
GB (2) GB690446A (is")
NL (1) NL79926C (is")

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216462A (en) * 1963-10-10 1965-11-09 G F Wright Steel & Wire Compan Production of small mesh wire netting
US3960147A (en) * 1975-03-10 1976-06-01 Murray William M Compression bone staples and methods of compressing bone segments
US4236440A (en) * 1978-08-31 1980-12-02 Haber Terry M Truss staple
EP0117079A1 (en) * 1983-02-17 1984-08-29 Michael James Kitson Tension staple
WO1997044589A1 (en) * 1996-05-24 1997-11-27 Kenneth Evensen Staple fastener driver and filler apparatus
US5772379A (en) * 1996-05-24 1998-06-30 Evensen; Kenneth Self-filling staple fastener
US20050145666A1 (en) * 2002-04-10 2005-07-07 Illinois Tool Works Inc. Fastener for tool with nosepiece with installation for bending fastener
US20070272720A1 (en) * 2006-05-23 2007-11-29 Acco Brands Usa Llc Partially-formed staple sheet and stapler for using same
US10492841B2 (en) 2014-07-10 2019-12-03 Crossroads Extremity Systems, Llc Bone implant and means of insertion
USD892331S1 (en) 2017-07-31 2020-08-04 Crossroads Extremity Systems, Llc Osteosynthesis clip features
US10945725B2 (en) 2017-02-06 2021-03-16 Crossroads Extremity Systems, Llc Implant inserter
US11179149B2 (en) 2017-02-07 2021-11-23 Crossroads Extremity Systems, Llc Counter-torque implant
US11202626B2 (en) 2014-07-10 2021-12-21 Crossroads Extremity Systems, Llc Bone implant with means for multi directional force and means of insertion
USD961081S1 (en) 2020-11-18 2022-08-16 Crossroads Extremity Systems, Llc Orthopedic implant
US11871899B2 (en) 2013-12-20 2024-01-16 Crossroads Extremity Systems, Llc Bone plates with dynamic elements
US12059183B2 (en) 2020-07-31 2024-08-13 Crossroads Extremity Systems, Llc Bone plates with dynamic elements and screws

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527477A (en) * 1968-04-29 1970-09-08 Witrick Louis Staple fastener
JPS5044819Y1 (is") * 1970-06-02 1975-12-19
US20100249166A1 (en) 2007-09-19 2010-09-30 Xy, Inc. Differential evaporation potentiated disinfectant system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US210482A (en) * 1878-12-03 Improvement in hoop-fasteners
US484107A (en) * 1892-10-11 Edward i
US777453A (en) * 1902-08-25 1904-12-13 George B Lombard Fastener for shoe-soles.
US1654371A (en) * 1926-03-22 1927-12-27 Earl G Oppenheim Staple

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US210482A (en) * 1878-12-03 Improvement in hoop-fasteners
US484107A (en) * 1892-10-11 Edward i
US777453A (en) * 1902-08-25 1904-12-13 George B Lombard Fastener for shoe-soles.
US1654371A (en) * 1926-03-22 1927-12-27 Earl G Oppenheim Staple

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216462A (en) * 1963-10-10 1965-11-09 G F Wright Steel & Wire Compan Production of small mesh wire netting
US3960147A (en) * 1975-03-10 1976-06-01 Murray William M Compression bone staples and methods of compressing bone segments
US4236440A (en) * 1978-08-31 1980-12-02 Haber Terry M Truss staple
EP0117079A1 (en) * 1983-02-17 1984-08-29 Michael James Kitson Tension staple
WO1997044589A1 (en) * 1996-05-24 1997-11-27 Kenneth Evensen Staple fastener driver and filler apparatus
US5772379A (en) * 1996-05-24 1998-06-30 Evensen; Kenneth Self-filling staple fastener
US20050145666A1 (en) * 2002-04-10 2005-07-07 Illinois Tool Works Inc. Fastener for tool with nosepiece with installation for bending fastener
WO2007136916A1 (en) * 2006-05-23 2007-11-29 Acco Brands Usa Llc Partially-formed staple sheet and stapler for using same
US20070272720A1 (en) * 2006-05-23 2007-11-29 Acco Brands Usa Llc Partially-formed staple sheet and stapler for using same
US11871899B2 (en) 2013-12-20 2024-01-16 Crossroads Extremity Systems, Llc Bone plates with dynamic elements
US10492841B2 (en) 2014-07-10 2019-12-03 Crossroads Extremity Systems, Llc Bone implant and means of insertion
US11202626B2 (en) 2014-07-10 2021-12-21 Crossroads Extremity Systems, Llc Bone implant with means for multi directional force and means of insertion
US11284887B2 (en) 2014-07-10 2022-03-29 Crossroads Extremity Systems, Llc Bone implant with means for multi directional force and means of insertion
US11998191B2 (en) 2014-07-10 2024-06-04 Crossroads Extremity Systems, Llc Bone implant with means for multi directional force and means of insertion
US11864753B2 (en) 2017-02-06 2024-01-09 Crossroads Extremity Systems, Llc Implant inserter
US10945725B2 (en) 2017-02-06 2021-03-16 Crossroads Extremity Systems, Llc Implant inserter
US11179149B2 (en) 2017-02-07 2021-11-23 Crossroads Extremity Systems, Llc Counter-torque implant
USD892331S1 (en) 2017-07-31 2020-08-04 Crossroads Extremity Systems, Llc Osteosynthesis clip features
USD960371S1 (en) 2017-07-31 2022-08-09 Crossroads Extremity Systems, Llc Osteosynthesis clip features
US12059183B2 (en) 2020-07-31 2024-08-13 Crossroads Extremity Systems, Llc Bone plates with dynamic elements and screws
USD961081S1 (en) 2020-11-18 2022-08-16 Crossroads Extremity Systems, Llc Orthopedic implant

Also Published As

Publication number Publication date
BE506506A (is") 1951-11-14
NL79926C (is") 1955-12-15
GB845377A (en) 1960-08-24
FR1043841A (fr) 1953-11-12
GB690446A (en) 1953-04-22
DE906870C (de) 1954-03-18
CH294078A (fr) 1953-10-31

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