US2918674A - Gun for fastener projectile - Google Patents

Gun for fastener projectile Download PDF

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Publication number
US2918674A
US2918674A US472393A US47239354A US2918674A US 2918674 A US2918674 A US 2918674A US 472393 A US472393 A US 472393A US 47239354 A US47239354 A US 47239354A US 2918674 A US2918674 A US 2918674A
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US
United States
Prior art keywords
housing
gun
barrel
pin
cartridge
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
US472393A
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English (en)
Inventor
Skumawitz Max
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.)
BOSSONG WERK GmbH
BOSSONG-WERK GmbH
Original Assignee
BOSSONG WERK GmbH
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 BOSSONG WERK GmbH filed Critical BOSSONG WERK GmbH
Application granted granted Critical
Publication of US2918674A publication Critical patent/US2918674A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/12—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting directly on the bolt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/105—Cartridge ejecting mechanisms and latch mechanisms

Definitions

  • the invention relates to a gun for impelling fastener projectiles, for use in imbedding bolts or studs or other fastening means into a solid mass, such as concrete walls or steel plates, or the like. It relates more particularly to such a gun which has a sleeve and a barrel axially shiftable relative to each other, for instance as disclosed in the patent of Carl Bossong, Patent No. 2,705,323, dated April 5, 1955.
  • the invention has therefore among its objects to provide a gun of this type that requires no special skill for rapid loading and ejection of the empty cartridge, andv that is safe to use irrespective of the angle of the gunas applied to the material.
  • the invention consists in the novel construction, arrangement and combination of various devices, elements and parts, as set forth in the claims hereof, one embodiment .of the same being illustrated in the accompanyingdrawing' and described in the specification.
  • this is accomplished in accordance with the invention by arranging an opening in the side ofthe sleeve which in certain positions of the gun parts aiords manual access to the seat of the cartridge in the rear of the barrel, without any need either to disassemble the gun,or to swing the gun parts laterally as proposed in the aforementioned patent.
  • the instant gun is furthermore provided with a safety device by which the gun is rendered incapable to be fired if the angle of attack surpasses a permissible value.
  • Fig. 1 is a vertical sectional view, partly in elevation, of a gun in accordance with the invention, shown in the loading position;
  • Fig. 2 is a fragmentary plan view, partly in section, of the same;
  • Fig. 3 is a large scale fragmentary plan View, partly in section, similar to Fig. 2, but showing the parts in theforward-most position subsequent to fring;
  • Fig. 4 is a fragmentary sectional view, similar to Fig. l, but showing the parts in positionfor applying the gun against'the material whichds to receive the projectile;
  • Fig. 5 is a diagrammatic view of an arcuate cam slot illustrated, however, in rectification
  • Fig.y 6 is a sectional v1ew, taken on hne 66 of Fig.
  • Fig. 7 is a sectional view similar to Fig. 6, but showing the locking parts locked;
  • Fig. 8 is a fragmentary sectional view, taken on line 8 8 of Fig. 2;
  • Fig. 9 is a sectional view, similar to Fig. 1, but showing the parts in firing position;
  • Fig. 10 is a large scale extended perspective view of the ejection mechanism of Figs. 2 and 3;
  • Fig. 11 is a fragmentary sectional view similar to Fig. 4, but showing the parts after the operator has pressed the gun against an object, but while the locking parts are still in the unlocked position of Fig. 6;
  • Fig. 12 is a fragmentary sectional view similar to Fig. l1, but showing the locking parts in the locked position of Fig. 7, the gun being in a. ready to fire position before the continued pressure of the operator has brought it into the firing position of Fig. 9.
  • a housing generally indicated at 11, that carries on its forward end 12 in threaded engagement an apertured cover 13.
  • an apertured cover 13 To the rear end 14 of the housing 11 there is secured, for instance by screws 16, a handle 17'.
  • a barrel assembly 18 is provided that is arranged coaxially of the housing 11.
  • the barrel assembly 18 and the housing 11 are movable axially relative to each other.
  • the barrel assembly 18 includes a body or body section 19, and a barrel 21 the rear end of which is in threaded engagement with the forward end of the body 19.
  • the body 19 is arrangedL slidableon the internal surface of the housing 11, enabling the housing 11 to move relative to the barrel assembly 18.
  • An axial bore 22 is provided on Athe interior of the [barrel 21, and forms a passageway for the projectile (not shown). Aligned with the bore 22 there is formed in the body 19 a bore 23 that forms a seat for receiving a cartridge 25 (Fig. l0). j v
  • the cartridge 25 When the gun is loaded, the cartridge 25 will be seated in the bore 23, and the projectile positioned adjacent the cartridge in the ⁇ bore 22, so that upon actuation of the cartridge 25 the projectile will be expelled forwardly' in direct-ion A through, and out of, the bore, 22.
  • the bore 23 is provided near its Vrear end with'an enlarged portion 24 to receive the flange of the shell of the cartridge 25.
  • An ejection mechanism is pro-fvided, generally indicated at 26, for ejecting the empty shell of the cartridge from the vseat'and out of the gun.' This will be explained below.
  • the central part of the barrel 21 carries on ⁇ the exterior an annular casing 27- that is threaded to the barrel 21 at 28.
  • the casing Z7 is spaced from the outer surface of the barrel 21 and defines therewith an annular gas expansion chamber 29.
  • the casing 27 is surrounded by a circular central bore 31 ofthe cover 13, that serves as a journal guiding the housing 11 on the casing 27. They Near the front endof the barrel 19 there is mounted' externally on the casing 27 a sliding sleeve 33, that is slid-K able inthe opposite directions A and B on the casing 27.A
  • a safety shield 34 that is movable together with the sliding sleeve 33.
  • a dog 36 is secured,v to'the barrel 21 and serves as aj.
  • a rst compression spring 37 is inserted between I' o forward face of the body 19 and the rearward surface of the cover 13, and a second compression spring 38 opcrates between the frontward surface of the cOver 13 and the rearward surface'of the safety shield-34. Saids'econd' the housing 11 inthe direction B relative ofr lthe barrel spring .38'urg'es the safety rshield 34 forwardly iny direcytion ⁇ A into abutment'witli the* dog .3G-,and thereby urges.
  • ⁇ cartridge-2.5 I will automatically be' discharged 'through the l I v relative ito Athe barrel assembly-18M l l
  • the 'aforementioned ejectionme'chanismiZ. ⁇ n cludes 'an elongated sliding element 39 that is 'slidinglyf arranged in a corresponding recess.41 that formed in:A the ein termal; cylindrical 'surface 'of the'body'19;r Near its rearward'fe'nd', the sliding element' 39 carries an 'ejectorv 42 f shown'n Fig. i2; theejectorfzispsitioned-in arecess 1 44'that is formed in the rearward ⁇ face of the body 19, f
  • the housing 311y ispushed -frontwardlyfinzdirection-A against-the power of the spring the handle :may-have areindicated in. Fig., 5, vbered with Roman numerals: v v f
  • the v handle 61 stands-aal; ⁇ Itinay; bernoved from that posiv v tion either tothe position 1I (shown in-Fig. ⁇ il), or-totheposition llI (shown'in Fig. yl2), and either; of'fthesel v l l ,33, prior tothe firing..
  • lugs S2 Near the rear end of the body 19 there are formed integrally therewith lugs S2.
  • a locking element or locklng member 53 which is movable axially of the housing 11 and is rotatable about its axis.
  • the locking element 53 has a central bore 54 in which there is disposed a slidablerlng pin 56.
  • the ring pin 56 and the cartridge 25 are disposed axially of the housing 11 and are aligned.
  • the rlng pin 56 has an enlarged rear flange that denes the .forwardmost position of the front end ⁇ of the pin 56 1n which the front end projects slightly beyond the front face ofthe locking element 53.
  • the locking element 53 has lugs 57 that are arranged to cooperate with the lugs 52 of the body 19 for interlocking the locking element 53 with the body ⁇ 19. ⁇
  • the lockmg element 53 is spaced from the rear end of the body 19 "fo1A a distance b.
  • a new .cartridge may: 'be placed l :intoythe bore 23 by inserting it manually"through-thev opening ⁇ 58 andA placing it in .the .bore l23.
  • Al pin 61r acts as'theieam-follower: and is secured .tol the; lockingmemj f ber 53 and extends througlilthe slot59 to the exterior and; l
  • the' ⁇ slot 59f hassnearfthat :posi-l l l l tion a restricted portion 'Byl mov-ing thel prin. ⁇ 61- .face of' the' body'19 yin the' loading fpo'sitionthereof, but: l i the lugsl 57 are so disposedY intheposition 1V (as shown f v in Fig.: i6) :thatthcref is nel:interlocking ⁇ of the llgigsf? ⁇ l ly, ⁇ -frorn. the' point III. to the point.y VfCShOWn in. Fig'. 9)
  • a holding element such as. a- 1split ring j 66.
  • Thelockingelement ⁇ 53 isholl'ow to the ⁇ rear, and car:- ries ayplate? that has ⁇ air aperture68t
  • the aperture 68 is smaller-than therearflange-offline ⁇ firing pin 56, and is in alignment therewith' to the; rear ⁇ thereof.
  • rlhe plate 67 thus prevents ⁇ a ⁇ rearward, ⁇ accidental ⁇ removal of ⁇ the tiring pini 56 from the bore i 54.
  • a compression spring; 69 extendslbetween theiront side of the. backing member ⁇ 64 ⁇ and the rear sideof the plate 67, ⁇ andqpressesjthe.plate 67 into itsseat, ⁇ and. at' ⁇ the same time urges-the lockingrnember ⁇ 53- forwardly tending. to move it inidirectionl A whenithe: pin 61 ⁇ is ⁇ either in the branchIII-j-V or in the Lbranch II.-IV:of the slotr59.
  • the baclringmember 64 hasi a central ⁇ bore 71 which ⁇ is in axial ⁇ alignnientywithwthe ⁇ aperture68' of the plate 67, andtthrough which there extendsthe forward portion of a tiring bolt 72.
  • ⁇ Theirearward portion of thering bolt 72 Vextendstlrough ⁇ a bore 73zofutheihandle 17, and has an upright grip 74 for ⁇ manual operation.
  • j As maybe clearly seen in Figs. 1 and 9 of'theidrawings, thecross section ⁇ diameter of bolt 72is smaller thanthosel of ⁇ bores1 71 and 73.
  • the grip 74 is disposed in a slot' 78ftha'tlisformed'in ⁇ the upper side ⁇ ot ⁇ the handle 17-tUpermit-thecocking and tiring' movement in. ⁇ directions B'andjA, respectively, of'theibolt 72.- ⁇ A; spring-79'pres ⁇ ses against a: ilangealy that' isi-formed on the bolt 72, to urgetheiboltwforwardly in direction-A. ⁇
  • the ⁇ irinfg ⁇ strokel of the-bolt 7 2 is limitedwby theiabutment andnumy y between the ilang 8l 'and a rear surface 82 that is formed adjacent the bore 71 on Athe backing member 64.
  • the loading is carried out in the loading position (Fig. 1), wherein the pin 61 is disposed at the point I of the slot 59 and the housing 11 is relative to the barrel assembly 18 in a rearward position defined by the equilibrium of forces fo the springs 37 and 38.
  • the opening 58 is unobstructed, and a cartridge may be emplaced in the bore 23.
  • the projecticle isv inserted into the bore 22, for instance through the front end of the barrel 21, into a position adjacent the cartridge.
  • the firing bolt 72 will be moved by the operator into the cocked position as shown in Fig. 1 against the force of the spring 79. Subsequently, the operator will turn the pin 61 from the position I into the ⁇ position II (Fig.
  • the operator will apply the gun to the material 83 into which the projectile is to be imbedded, for instance concrete or the like.
  • the operator holding the handle 17 will apply the safety shield 34 against the material 83,.
  • bolt 72 can strike the firing pin 56 only after the housing 11 has been pushed forwardly relative to the barrel assembly 18 and the locking element 53 .abutting thereon for the additional distance a.
  • the tiring bolt 72 By manually lifting the grip 74, the tiring bolt 72 will be disengaged from the locking pin 77 and is ready for forward movement, and the spring 79 will press the bolt 72 forwardly to strike the pin 56 which, n turn, will strike the cartridge 2S to expel the projectile through the bore 22 into the material 83.
  • a set screw 84 that has on the interior of the housing 11 a rounded surface 86.
  • the screw 84 is adjustably secured by a nut 87.
  • the sliding sleeve 33 v may be pressed rearwardly for a total distance s (Fig. 1), as the rear face of the sleeve 33 abuts in its rearmost position against a front ange 88 that is formed on the cover 13.
  • the distance s is so chosen, that the outer sleeve 33 can cover it only when the axis of the barrel 21 is approximately perpendicular to the surface of the material 83.
  • the distance s is only slightly larger than the sum of the distances a and b for which the housing 11 must be moved forwardly in order to render possible the firing of the projectile.
  • a barrel for said fastening device including a rear end portion having a seat for a cartridge, a housing surrounding said rear end portion and being movable axially relative to said barrel, a locking member movably disposed in said housing and normally being spaced from the rear end of said barrel and being movable and rotatable for closing releasably said rear end, and ring means operatively positioned to detonate said cartridge, said housing having an opening adjacent the normal position of said locking member affording manual access to said seat, said housing having a cam slot, said locking member including a pin projecting through said cam slot to the exterior of said housing for manual application, said cam slot having a section extending for a portion peripherally of said housing and sections at the ends of said peripheral section extending parallel to the housing axis, whereby said locking member may be moved in either axial direction rst axially, then rotated for locking and unlocking
  • a barrel for said fastening device including a rear end portion having a; seat for a cartridge, a housing surrounding said rear end portion and being movable axially relative to saidi barrel, a locking member movably disposed in said housing and normally being spaced from the rear end of said barrel and being movable and rotatable for closing ⁇ releasably said rear end, and firing means operatively positioned to detonate said cartridge, said housing. having anA opening adjacent the normal position of said locking. member affording manual access toy said seat, together with. a. spring urging said locking member ⁇ forwardly relative to said housing.
  • a gun employing an explosive cartridge device to drive a fastener into a solid ⁇ mass and provided with a handle and a backing member formed with co-axial bores, the combination of a barrel assembly for-said fas tener, a housing assembly axially movable relative to said barrel between protracted and contracted positions, resilient means between said assemblies maintaining them in the protracted position, said barrel assembly including a seat for receiving said explosive device, saidthousing assembly having anV opening aiording manual access to said seat in said protracted position, a locking element axially movable in the interior of said housing assembly and operable to be releasably latched to the rear end portion of said barrel assembly and when unlatchedv to block said barrel assembly and housing assembly from reaching said contracted position, and when latched to. said barrel to guide said barrel assembly and housingholembly to the contracted position upon the exercise of manual pressure exerted upon said housing assembly while said bar rel assembly is applied to a solid mass for ring, and
  • ejecting means for ejecting through said opening the cartridge of ⁇ said explosive device lfollowing the firing, said opening being positioned adjacent said seat, saidlocking element being axiallyi movable ⁇ and axially ⁇ rotatable within said housing assembly, said housing assembly having a substantially ⁇ Z-shapect slot, a pin connected to said locking element and extending through said slot, said lockinglelement being movable by manual movement ofsaid pin, said ejecting means being slidably arranged in said barrel assembly near the rear end thereof.
  • said locking ⁇ element havingan apertured plate, a tiring pin, a spring pressing said plate ⁇ of said locking ⁇ element to. secure said tiring pin from accidental dislodging, and a spring; powered iiring bolt extendable ⁇ through the aperture of. said plate.
  • a tiring bolt having across-section smaller than those of the cofaxial handle and backing memben bores, said bolt being movable in said bores axially and having radial motion ⁇ playftherein permitting it to4 be ⁇ flexed, and being settable to a rearwardmost position, said firing bolt having a recess, a pin mounted in said housing assembly engaging4 said recess in the rearwardmost position, said firing bolt being ⁇ releasable Vfrom said pin by movement at right angle to the axis of said bores.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Toys (AREA)
US472393A 1953-12-28 1954-12-01 Gun for fastener projectile Expired - Lifetime US2918674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE331312X 1953-12-28

Publications (1)

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US2918674A true US2918674A (en) 1959-12-29

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ID=6196094

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US472393A Expired - Lifetime US2918674A (en) 1953-12-28 1954-12-01 Gun for fastener projectile

Country Status (6)

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US (1) US2918674A (sk)
BE (1) BE764989A (sk)
CH (1) CH331312A (sk)
FR (1) FR1121935A (sk)
GB (1) GB764989A (sk)
NL (1) NL92896C (sk)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032768A (en) * 1958-04-21 1962-05-08 Lamoureux Roland Safety means for nail guns
US3060435A (en) * 1955-12-06 1962-10-30 Olin Mathieson Fastener device
USRE30617E (en) * 1979-08-10 1981-05-19 Olin Mathieson Chemical Corporation Power actuated tool
US20190178598A1 (en) * 2017-12-08 2019-06-13 James Eric McMillan Concentric rifle barrel assembly
US20200141682A1 (en) * 2017-12-08 2020-05-07 James Eric McMillan Concentric rifle barrel assembly
US11878400B2 (en) 2021-01-20 2024-01-23 Milwaukee Electric Tool Corporation Powered fastener driver

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL99705C (sk) * 1957-03-14
US2910701A (en) * 1957-06-10 1959-11-03 Mine Safety Appliances Co Explosively actuated stud driving tool
US9102045B2 (en) 2011-09-29 2015-08-11 Caterpillar Inc. System and method for easy removal of hydraulic hammer bushing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665421A (en) * 1950-02-11 1954-01-12 Stanley A Temple Projectile launching device
US2669716A (en) * 1951-10-24 1954-02-23 Remington Arms Co Inc Fire control for powder actuated tools
US2700764A (en) * 1952-07-24 1955-02-01 Remington Arms Co Inc Safety shield for explosively driven tools
US2719300A (en) * 1953-06-05 1955-10-04 Remington Arms Co Inc Fire control for stud driver
US2724116A (en) * 1951-07-12 1955-11-22 Termet Pierre Explosively actuated fastener driving tool
US2766451A (en) * 1953-08-03 1956-10-16 Ben Weingart Explosive actuated fastener applicator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665421A (en) * 1950-02-11 1954-01-12 Stanley A Temple Projectile launching device
US2724116A (en) * 1951-07-12 1955-11-22 Termet Pierre Explosively actuated fastener driving tool
US2669716A (en) * 1951-10-24 1954-02-23 Remington Arms Co Inc Fire control for powder actuated tools
US2700764A (en) * 1952-07-24 1955-02-01 Remington Arms Co Inc Safety shield for explosively driven tools
US2719300A (en) * 1953-06-05 1955-10-04 Remington Arms Co Inc Fire control for stud driver
US2766451A (en) * 1953-08-03 1956-10-16 Ben Weingart Explosive actuated fastener applicator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060435A (en) * 1955-12-06 1962-10-30 Olin Mathieson Fastener device
US3032768A (en) * 1958-04-21 1962-05-08 Lamoureux Roland Safety means for nail guns
USRE30617E (en) * 1979-08-10 1981-05-19 Olin Mathieson Chemical Corporation Power actuated tool
US20190178598A1 (en) * 2017-12-08 2019-06-13 James Eric McMillan Concentric rifle barrel assembly
US10533820B2 (en) * 2017-12-08 2020-01-14 U.S. Arms Company Llc Concentric rifle barrel assembly
US20200141682A1 (en) * 2017-12-08 2020-05-07 James Eric McMillan Concentric rifle barrel assembly
US11878400B2 (en) 2021-01-20 2024-01-23 Milwaukee Electric Tool Corporation Powered fastener driver

Also Published As

Publication number Publication date
GB764989A (en) 1957-01-02
BE764989A (fr) 1971-08-16
NL92896C (sk)
CH331312A (de) 1958-07-15
FR1121935A (fr) 1956-08-28

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