US1447732A - Hammer - Google Patents

Description

Mar. .6, 1,923. a

C. F. SCHRQEDER ET AL D A v 4 m M m QQ 'J M v Patented ar. 6, 1923.

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Application filed January 19, 1922. Serial No. 530,471.

" a 11' M1,. n i i 1 I alt whomit may concern:

"Mavens eeesessrnr, heasanl' reside'iits '01- ok State (at aimsof to merger which the relates to hammers and par tihu arlyito 'inprovediiieaiis for securely "j aiidintercl angeably supporting "on: the ham- 5 are: btidy,.tipsorffacingcf ofter man or "other j'mat'erial enable the hammer to be "used fcrffstriking work-without marrinig it.

ps rigidly in place that 'lolows on the tip ""will be directly transmitted to the hammer body and not toscrews, bolts or other membersfwhiclif secure; the tipliolding f parts topreventing loosening and subsequent rattling or vibrating, ofthe hammer. parts.

The above andotherl features of our inventlon aremcbTporated in the structure" shown on the accompanying drawing, in which drawing Fig. 1 is a side elevational view of a hammer head with part of the handle,

Fig. 2 is a side elevational view of the head body section with one tip, and the tip securing plate removed,

Fig. 3 is an end elevational View of the hammer head,

Fig. 4 is an end elevational view with the clamp or plate member removed,

Fig. 5 is a sectional view on plane 5--5, Fig. 3,

Fig. 6 is a sectional view on plane 6-6, Fig. 3, i

Fig. 7 is a sectional view similar to Fig. 5,showin amodified arrangement, and

Fi 8 1s a sectional view on plane 88, Fig.

The hammer head comprises the body part indicated as a whole by A and the cover or clamping part indicated as a whole by B. The body part A comprises the inner or core section 10 and the outer section 11 which is integral therewith. As shown the core section is of frusto-conical shape decreasing in diameter from the center to the ends. The

,that we, CHARLES F. SOHROE- eiited certain new and useone important feature of the invention is ov'd'e iiieaiis whereby thei'desired" tips or aces canbequickly and readily applied err newal Another important feature 'is I 1 ftepietiae such coiistruotioiifor securing the outer part 11 eiitends around only one-half of thecore-fpartand is in'theform of aiayer of metal which projects a distance beyond circular dove-tail pockets 12 andi-1'35-::i"-

ing. passageway 14,- fori'receiying "a? suitble'fliandle 'l-ll Ex'tending from the-core joartifill and side opposite: thelpart 11 is the flange or bo'ss' which surrounds the end *of' the passageway 14' and" serves torecelve the opennigxld 1n theclampingmember'B which is of the same shape as thepart 11 and which when applied tothe bbdy'part A intimately will'cdver thelot'herhalf ofthe core part; "When tlie i pa'rtiB-is appliedit fits snugly against the core partIO and its boss" 15,( andjits ends 17 and 18- whichfloven hang the "ends'of the corpartfiyillformsemicircular dove tail'pocketsl'tl and 20'which register with the clove-tail. pockets 12 and18 I K to form cifrcularidove-tail pockets for receiv- "gether', such direct transmissionbf' blows ing facingortip memberslf Sui-table securing means suchas'screws army be used for rigidly securing the clampingmember B to the body part j To accurately guide part B" into clampingposition and to give it a snugger fit on the boss 15, the outer face of the boss is tapered and the opening 16of the part B is correspondingly tapered as indicated at 22 so that when the part B is secured by the screws its surfaces will intimately engage with the outer surfaces of the core part 10 and boss 15 thus making a solid and rigid structure.

The hammer faces or tips F may be of metal, rubber, fiber or any desired material and are provided with frusto-conical or dove-tail extensions 28 for receiving the dove-tail pockets formed by the hammer head parts A and B. The faces can be read ily interchangeably applied. The clamping part B is removed and the faces are then applied in the dove'tail pockets 12 and 13 and then when the part B is applied the pockets 19 and 20 will receive the faces and they will be securely, rigidly and solidly locked to the hammer head. All blows on the faces will be directly communicated to the body part A of the hammer and the screws 21 will be entirely free from strain. The clamping part B by intimately engaging with the core part 10 and the boss 15 will transmit blows directly to the body A, so that the hammer Extending transverselyand d iametrally *tliroug'hithe bodytpart A is {thehandle re can be used with the same efiiciency as thpugh the head and faces were integral and so id.

In the modifications shown in Figs. 7 and 8,-the two parts C and D of the head are alike except that the part B has the flange 24: integral therewith for receiving the opening 25 in the part D, a handle when inserted being thus engaged entirely by the part C. Theflange and opening 25 are also tapered so as to assure a secure and rigid fit of the parts. V

Having described ourinvention, we claim as follows:

1. In a hammer head, the combination of a solid one-piece body part, a boss on one side of said body part, there being a passageway through said body part andboss for receiving and securing a handle, the ends at one side of said body part projecting to form semi-circular dovetail pockets, a clamping part intimately fitting against the side of the body part and having a hole for receiving the body partboss, said clamping part overhanging the ends of the body part to form semi-circular dovetail pockets for cooperating with the pockets of the body part, hammer faces having dovetail extensions for being received in said pockets, and

screws for holding said clamping part to the body part, said boss being tapered and said clamping part hole being correspondingly tapered to intimately receive said boss when said clamping part is secured to the body part by said screws, whereby blows against the hammer faces will be transmitted entirely through the clamping part and boss directly to the body part and said screws relieved from all transverse strain.

2. In a hammer head, the combination of a body part and clamping part, said body part comprising-a core section of circular cross section and an enveloping section half way surrounding said core section, said enveloping section extending beyond the ends of the core section to form semi-circular dovetail pockets, said clamping part being of the same shape as said enveloping section, screws for detachably securing said sections together, said clamping part extending beyond the ends of the body. part and forming semi-circular dovetail pockets registering having a hole tapered to intimately and securely fit said. bosswhen saidclampingpart is secured to, the body part by said screws, whereby blows against the hammer faces will be transmitted through said clamping part and boss directly tothe body'npart and said screws protected against transverse strain.

In witness whereof, we'hereunto subscribe our names this 12th day of January, A. 1)., 1922. V I i CHARLES F. SGHROEDEER. AUGUST A. QUEDENSLEY. v

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