US2101920A - Multi-ply wood baker's peel - Google Patents

Description

Dec. i4, 937. HA L SCHROEDER 2,101,920

MULTI-FLY WOOD BAKERS PEEL Filed June 3, 1935 Patented Dec. 14, 1937 UNTED STATES PATENT OFFICE MULTI-FLY WOOD BAKERS PEEL Henry L. Schroeder, Chicago, Ill.

Application June 3, 1935, Serial No. 24,595 5 claims. (c1. iov-67) The invention relates to a novel construction of In the topplan view of the preferred form of multi-ply wood strips united at various angles to the completed composite peel blade blank of Fig. produce structures of unusual and novel forma- 1 as well as in the modications of the same as tion, particularly desirable for use in the manushown in Figs. 3 and 5, portions of the lamina or facture of' peel blades which maybe used by plywood, superposed layers of which the blanks bakers for the proofing of bread, the handling of are formed, are shown broken away to disclose crackers or any other uses to which peel blades the arrangement 0f the grain of the Wood sheets may be png or lamina of the respective blade. blanks, While the My improved structure is particularly designed side elevation views of these respective figures as and adapted to produce a composite Wood blade SllOW'n in Figa 2, 4 and 6, Onll7 the arrangement 0f of a plurality of veneers or plywood so arranged as the lamina 0r layers iS attempted t0I be ShOWn to practically eliminate splitting and to positively and the grainng and the brOken away DOrtiOnS prevent warping under the unusual conditions to are emitted and it Will be understood that the which bakers peels are usually subjected in their preferred ferm 0f blank 0f Figs. 1 and 2 as Well as uses connected with baking ovens, the constructhe modified fOrrnS SllOWn in Figs. 3, 4 and 5 and 5, non being also adapted to greatly prolong the respectively, represent substantially completed wearing qualities and the life of peels made from WOO- bled-e5 ready fOr use in a COInInerCal Deel composite wood blanks constructed in accordance With the eXCeDtiOn Of Whatever recessng or cut- Wltn the invention. ting or other provisions may be providedfat the It is a further object of the invention to provide heel end 0f the blade fOr the attachment of the an improved construction o-i a composite blade Usual del'leehable handle USedn manipulating the blank of veneer or plywood presenting an active Peel blade, all Olf Which are in the present empoint or engaging edge for a peel blade that will bodmenl'f omitted Since the' Same forms n0 Dart be re-enforced by a novel arrangement of the 0f the flVentiOl'l and it Will Suiiiee t0 Say that any grain of the Sheets of: Veneer Uhr plywood used in form of conventional handle or handleA attaching making the composite blades whereby to prolong means may be provided at the heel end of the imthe life of the blade by increasing the wearing proved Deel bled-e5 embodying my inVentin.

qualities at the work engaging end or point of the Witll I1eferenee t0 the t0n' plan Views of the blade, at the same time rendering splitting of the forms 0f the blades ShOWn in Figa l and 3 espe- 0 blade throughout the length oi its useful life Cially it SllOuld be noted that Only the t0n SU-r- 3 practically impossible. faces of the exposed lamina or layers of the plyother objects or the invent-ien win appear from Weed are intended to be Shown for the purpose of the following description which is directed to the illustrating the direction 0f they grain therein. In preferred embodiment of my improved peel blade Phe 1erm 0f a multiply peel blade blank illustrated blank construction, reference being had to the 1n FlgS- l and 2, it Will be Seen that a Ve ply drawing forming a part Gf the specicanon, the structure is provided in which the intermediate, features of novelty being Speclnally Sel; forth in longitudinal core l0 is shown as of substantially the appended claims, equal thickness throughout the area of the blade In the said drawing: and that this relatively thicker core is substan- Fig. l is a plan view of a peel blade blank contially the base or foundation of the Acomposite structed in accordance with my invention, porstructure. I prefer to have the grain of the 1ontions of the Composite layers of the blank being gitudinal core portion I0 extend substantially parbroken away. to disclose the arrangement of the nllel with the longitudinal axis 0f the blade as grain of the wood sections. a shown most clearly in Fig. l and to this portion Fig. 2 1s a s1de elevation View of the blank of I Secure by means of glue or other Sul-table ad Flg.- 1- hesve on both the ilat surfaces thereof the veneer Flg 3 1S a' modled form of the Composite blank lamina or layers Il and l2 respectively. These of Figs. l and 2 showing a three-ply blade as l contrasted with the five-ply construction of Figs. Sheets I I2 of thm Wood are so Secured to me 1 and 2, and Fig. 4 is a side elevation View of the respectwe upper and lower Surfaces of the longl' i construction shown in Fig. 3. tudlnally grained core member l Il as to have their Fig. 5 is a further modification of the invention reSPeCtlVe grains running Substantially at a 45 as applied only 130 the point or Work engaging, angle to the direction of the extension of the thinned, forward end of a wood peel blade, and grain 0f the intermediate COI'e lll and their reper Fig. 6 is a, side elevation of the same, spective grains will then extend substantially at a 90 angle to each other, all as illustrated in Fig. 1.

After the securement of the layers il and i2 in the aforesaid manner to the intermediate core Ill, this three ply composite structure has applied on the outer flat surfaces thereof similar thin plys or layers of wood I3 and` I4 respectively, both of which also have their grain directions to extend substantially at 45 angles to the extension of the grain of the intermediate longitudinal core section I but in order to secure strength and ability to withstand warping and splitting strains as shown in Fig. l, I arrange the grain of these outside layers I3 and I6 so that their respective grains will extend substantially at right angles or an angle of 90 to the grain of the before described layers il and i2, to which these are firmly united by glue joints in the manner in which plywood lamina or layers are commonly united and since peel blades of the described character are subjected frequently to relatively high degrees of heat in baking ovens, obviously care must be exercised to select well known forms of glue or adhesive that will not be deleteriously effected or softened by heat.

With the ve ply blade constructed of the intermediate core I@ and the lamina or layers II to Il inclusive as described, a composite blade of rectangular form as illustrated in Fig. l is then ready for incorporation of the handle attaching means after it is suitably pointed at the end opposite the heel or handle attaching portion where it is preferably beveled or sanded to a pointed condition as illustrated in Figs. l and 2 where itwill be seen that the beveling and sanding operation will polish and finish the bladev so that the forward edge of the composite blade will be beveled to a comparatively sharp or knifelike edge, the beveling being done at an angle that will expose, as shown in Figs. l and 2, the beveled, pointed, forward and work engaging portion I!) for a short distance and will also expose the 'portion ci the forward beveled surface of the lamina or layers l I and I2 next the intermediate core I0, the beveling operation preferably extending back and thinning down the forward portions of the outer layers I3 and Id somewhat in the manner indicated at Figs. l and 2.

Extensive experiment and experience on my part with bakers peel blades constructed in accordance with the before described features of construction as illustrated Figs. i and 2 has demonstrated that a peel blade constructed in this manner has great strength and rigidity and will not split and become deleteriously effected, particularly at the point of the blade, thus giving such peel blades unexpectedly iong lite under the difficult conditions oi heat and rough oven bottom conditions where they are commonly used.

I find, for example, that with a nve ply composite peel blade constructed as above described and illustrated in connection with Figs. l and 2 that while the exposed and sharpened forward or pointed extremity of the intermediate core portion Iii may ultimately wear orf and down to the co-operating thin pointed portions of the layers I I and I2, nevertheless the construction of the lamina or layers of the blade at the point where the most severe abrading and splitting effect upon the blade takes place, will ordinarily not permit the peel to split or warp at the point but the 'construction will retain and hold the thin projecting intermediate part oi the core portion Iii until it is substantially worn away and any tendency towards splitting of the core Ii) will be effectively resisted by the rela-tive 90 angularities of grain the layers or lamina i I, I2 which latter will be further reeniorced by their outer protective coverings I3 and I4 which, as described, have their grain extensions arranged at substantially right angles to the grain extensions of the layers I I and I 2 to which they are secured.

This improved construction, therefore, provides an improved peel blade that may be used and worn almost indefinitely and abrasion and wear will ordinarily only tend to shorten the length of the blade without permitting splitting and warping so that the maximum life or" the blade may be secured before replacements are necessary.

. The 45 arrangement of angularity of the respective layers or lamina of my ply board blade also tend to prevent undue splitting of the outer protective layers i3, ifi and i i, i2 since the abrading eiect, due to the contact of the point with the oven bottom, appears merely to wear away the wood particles of the structure without permitting the splitting of the same at the point where the most destructive effects of peel blade wear usually take place, rendering them ordinarily short-lived and subject to frequent and rapid replacements.

In the form of the invention shown in Figs. 3 and 4, a cheaper lighter but very eilicient threeply form of composite blade is illustrated in which an inner cor-e I is illustrated as tapered from the heel end toward the point of the composite blade. As shown in Fig. 3, the grain of the inner tapered core will preferably extend longitudinaly of the blade, and the core iii as Well as the before mentioned core id oi the form of blade shown in Figs. l and 2 may be made of very light wood as balsa wood or corkwood and the outer lamina or layers of wood of firmer texture or grain so that in each case, the exposed surfaces of the blade will be well protected by the layers of firmer wood.

In the form with the tapered inner core shown in Figs. 3 and 4 I prefer to terminate the inner core of the normal length of the blade in the man- L ner illustrated thus bringing the material at the point of the core I6 to a very thin dimension as indicated at I8. When the three ply construction is used, the grain of the outer layers or lamina as indicated at I9, 26 will be arranged as shown to a extend at an approximate angle of 45 to the grain of the core it and at the point of the blade, the layers it and 2@ will extend beyond the terminus of the thinned end i3 of the inner core it and be suitably glued together and sanded .i

and sharpened at the forward point as indicated at 2l, Fig. 4.

My experiments and experience with peel blades constructed in accordance with the invention has taught me that the importance of the invention resides in the novel arrangement of the grain of the reenforcing materials or outer lamina of the blade in relation to each other and in relation to the grain oi the inner core and I have found that a light, cheap form of peel blade may be constructed embodying the principles of my invention, with respect to the construction toward the point of the blade where the most destructive wear upon the blade takes place, as illustrated in Figs. and 6 in which a substantially solid peel blade blank 22 is shown formed of an integral piece or wood, preferably having the grain extending longitudinally and from the heel end toward the point thereof; Such a peelV blade blank may be of very light and soft or relatively not rm wood having the point thereof reenforced by ply wood layers or lamina 23, 24 similar to the before described outer layers or lamina of the blanks of Figs. 1 to 4 inclusive. The reenforcing point members 23, 24 may be attached to the beveled or pointed end of the blank 22 by recessing it in the manner indicated in Figs. 5 and 6, the layers 23 and 24 having their grain extending substantially at right angles to each other and at substantially an angle of 45 to the extension of the grain of the blade member 22, and these reenforcing point layers 23, 24 may be suitably glued at the point of the blank 22 and overlap and extend beyond the same in the manner illustrated where they will be brought together and united by adhesive and sharpened and sanded to form a suitable point for the blade.

Such a blade point construction as in the case of the similar construction shown in the modified form of Figs. 3 and 4 will admit of long Wear. The angular extension cf the grain in the reeniorcing point layers 23, 24, when these parts are suitably glued together will eilectively resist splitting Vcr abrading until the members 23 and 2li are worn back to expose the intermediate sharpened point of the blade body section 2v2 when the operation of the same may be continued as with the form of Figs. 1 and 2 until the blade is substantially worn out.

A s indicated in connection with the form of the three ply reenforced point of the blade of Figs. 3 and 4, when extremely soft lumber is used in the formation of the peel blade body 22, the reenforcing point layers 23, 24 may be made flush with the outer surfaces of the body portion 22 by application of pressure upon the parts when they are being glued together, but in the event that a more irm or harder material is used for the body 22, recessing by cutting or other similar operation may be necessary to offset the body portion 22 for co-operation with the pointed layers 23, 24.

In order that the invention might be understood, the details of the preferred embodiments have been set forth and particularly described, but it is not desired to be limited to the details of the construction shown except as specified in the claims since it will be apparent that persons skilled in the art may resort to Various modications without departing from the purpose and spirit of my invention.

I claim:

l. In a composite Wooden bakers peel, an inner core having a tapered tip, veneered Wooden sheets of uniform thickness attached to each other and to the tapered tip at each side, overlapping the core and contacting with each other beyond the tip, the grain of the veneer of corresponding sheets on opposite sides of the tip being parallel and at right angles to that of the adjacent veneer sheet to prevent warping of the peel when it is heated, and the grain of the veneered sheets in the tip being at an angle of forty-ve degrees with respect to the edge of the tip to form a thin hard wearing edge.

2. In a composite wooden bakers peel, an inner core with a tapered tip, veneered Wooden sheets of uniform thickness attached to each Vother and to the tapered tip at each side, overlapping the tip end of the core, the veneered sheets contacting with each other and having the same number oi layers on each side of the core and the grain of the veneer of corresponding sheets on opposite sides of the core being parailel and at right angles to the grain of the next adjacent sheet or sheets to prevent warping of the peel when it is heated, the grain of the layers at each side of the core each being at right angles to the grain of the next layer or layers and at an angle of forty-five degrees to the edge of the tip of the peel. p

3. In a composite Wooden bakers peel, an inner core with a tapered tip, veneered wooden sheets attached to each other and to the tapered tip at each side, overlapping the core, the grain of the corresponding sheets on opposite sides of the core being parallel and at right angles to the next adjacent veneered sheet on the same side of theV core, the portions of the veneered sheets beyond the core tip being beveled and adhesively secured together, the extremities of the sheets meeting and forming a sharp projecting edge in which the grain of each of the sheets is at an angle of fortyve degrees to the extremity of the peel.

4. In a composite wooden bakers peel, an inner core with a tapered tip, veneered wooden sheets attached to each other and to each side of the tapered tip, the outer ends of the sheets being beveled and abutting each other, overlapping the core, and adhesively secured together, producing a sharp outer extremity, the grain in each sheet at one side of the core being at right angles to that of the next sheet, the grain in corresponding sheets on opposite sides of the core being parallel and in engagement beyond the core, and the grain in all of the sheets being at approximately an angle of forty-five degrees to the exposed extremity of the tip to provide a thin, hard, Wearing edge.

5. In a composite Wooden bakers peel, an inner core with a tapered tip, ply Wood sheets, each consisting of several layers of veneer attached at each side of the tip and beveled at the inner sides of the outer ends so that opposite corresponding layers meet beyond the ends of the core, the said corresponding layers having parallel grains which are at right angles to the grains of the adjacent layers, and the grains of all the layers being at an angle of fortyve degrees to the tip edge of the peel.

HENRY L. SCI-IROEDER.

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