US1508706A - Locks of all kinds - Google Patents

Description

gw. 1s, 1934'. Y 15113706 v F. W. MEWS i LOCKS OF ALL KINDS Filed Sept. 17. 1921 3 Sheets-5h89?. l

sept. 1e, 19,24. 1,508,706

F. W. MEWS LOCKS 0F ALL KINDs Filed Sept. 17, i921 5 Sheets-Sheet 2 Sepe. 16, 1924.. 1,503,706v

F. W. MEWS LOCKS OF ALL KINDS Z3 Filed Sept. 17, 1921 gheets-Sheet 3 Patented Sept. l5, i924.

Ldfifi FREDRICH-WILHEIEJE IVWS, OF BERLN-STEGLITZ, GER-MANY, ASSIGNOR TO ORAG- WERK A. G., O WNDSBEEK, NEAR. HAMBURG, GERMANY.- Y

Leens or' arr nrnnsf.

To all whom t may concern.'

Be it known that l', Fninnnioi-rllfrnrrrmr Mnws, engineer, residing at Berlin-Steglitz, Germany, 6 Friedriclisruherstrasse, have invented certain new and useful Imr provements in Locks of All Kinds, of which the following is a specification.

According to this invention, which is applicable to locks of all kinds, members or elements of thelock mechanism are positioned and guided in the lock case by means of flanges or lugs bent towards the lock walls or adjacent parts, or by indentations made in such walls or members or both, whereby they engage each other, rivets4 and like fastening means being'thus dispensed with. This cheapens the cost of lnoduction and largely facilitates the assembling of the parts, as for example in a padlock with converging side walls, where flanged members of the mechanism need only be pushed down into the pocket formed by the case, and co-operater with the case and with each other to maintain their pro-per position. ln this way lf may fit a ward plate into the lock, and in some cases also' a supplementary plate, as will be described hereinafter. The invention also includes, in combination with these features, an arrangement whereby they key being bent is inserted with a circular' movement. f

The indentations referred to may be used in some cases as substitutes for' the lugs or flanges, or in co--operation with such lugs,

and they' may be arranged as part of an ornamental pattern, for decorative purposes and also for purposes of concealment.

The: invention is illustrated in the annexed drawings, which show various forms" of construction.I

Figs.y l toi 6 show one coi'istruction, and Fig. 7 shows part of the key therefor. Figs.y l and 2 are fro-nt elevations with'one o'f the case walls removed, and Fig. 3 is a side view' with a side wall removed. 4 tot show details. Figs. 8 to' 10 are views similar to Figs. l to 3, of a somewhat modified.- construction. Other modifications are shown in the remaining figures, ll to 28, all to' be described in detail hereinafter.

Referring first to the construction shown in Figs. l to' 7, :the ward plate l() and bolt 13 have portions or flanges 1i and 3l re'- spectively bent over towardS 0X1@ side, and ay Application filed September 17, 1921. Seriali No. 501,379.

supplementary plate 43- has lugs or flanges 44, at topv and bottom respectively, ben-t over @towards the other side. "The twoplates, side by side, are positioned between the" lock covers by means of these flanges. The plate 43 is'cut away at its top corners to make room forthe; perforated end of the shackle and for the spring 35 engaging the bolt. This platel has an aperture 45, roughly (3f-shaped, Giving passage to `the key 6, the nose 46 embraced by this aperture coveringthe ward 28 of the plate l0 and the tongue 34 of the bolt, so that it pre-vents tampering with the lock for the purpose of ascertainingv ythe thickness and position of the wards. rlfhe aperture l in the key bit has a narrower enlargement 47 for the nose 46. The upper part of the aperture 45v is narrower than theY aperture 33 in the bolt, and this prevents a wire or the like from being placed against the rim of Ithe bolt for forcing it back'. rlhe plate 43 also to a large extent obstructs tampering` with the bolt by means of a; wire or the like inserted through the. entrance for thev shackle.

ln the modification shown in Figs. 8 to 10' there is no supplementary plate, but the ward plate 10 has a bend 48, forming a shoulder which serves asy a guide for the bolt 1.3. The plate l() has flanges il bent in the opposite direction to the flanges 3l of the bolt, but at Ithe bottomy the plate l0 is also bent out towards the yside opposite to the flange l1. Instead of this, the entire" lower part of the plate, between the bolt and the flange ll may be inclined towards one; of the lockcovers, as sho-wn in Fig. 1l.`

The plate l() Vin Figs. 8 to if) has an aperture 45 andfnose 46 similar' to those of they platee?, at which point it is turned towards .Y f

the lock case plate 2 the key hole of the lock is placed at a lower level than the nose 46 (or tongue 28), the key having a bend 49 as shown in Fig. 12, between the bit and the handle, requiring it to be inserted with a kind of scooping motion, as indicated by key engaging a pin in the lock.

broken lines in Fig. 11. rllhe inward movement of the key is limited by shoulders 50 which engage the lock case; the widthl of the inserted part of the key is nearly equal to the clearance between the front and back of the lock case, and the key is thus guided. by Ithe walls of the case.

The lock case may be manufactured in various ways. It may be cast in one piece, or by flattening a funnel or the like of sheet metal; in the latter case, when the lock mechanism has been inserted at the top, the upper edge-part of one or both parallel walls of the case may be bent inwardly to close the case.

For positioning the plate 10, and alsothe plate 48 if one is used, in a lock whose side walls do not converge in the manner shown in Figs. 1 and 2, I may provide the lock case with indentations, or use ornamental iiidentations such as are frequently made, for engaging the flanges 11 and 44. To save material, as much of the plate as is not required for structural purposes may be out away. Where the case walls do not converge to form a pocket for the spring, the latter may likewise be engaged with indentations of the case, so that a stud .is not required. Fig. 14 shows a portion of a lock case with rear and front walls 1. and 2 and a rim 3. The wall 1 has an indentation or dent 4 for a nose 5 on the key 6. The. key, which may be stamped out of sheet metal, is thus prac-tically as securely guided as'if it were a barrel Circularlv curved indent-ions 21 in the walls 1 and 2 form wards engaging nicks 7 in the key bit, equidistant from the axis of rotation, which is the axis of the nose 7. There in ay be only one indentation 21, or only the dent 4, but when more are used the safety is greater.

15 shows a flat spring 8, for the bolt, with an enlargement 9 at one end, whereby it can be engaged with indentations 2O in the lock case, as shown in Figs. 17 and 18. The enlargement 9 for the purpose may be made by pushing one end of the spring` through slits in a plate, as shown in Fig. 18.

Figs. 19 to 22 show arrangements for guiding the bolt 18 by means of indentations or grooves in the lock case. In Figs. 19 and 2O the bolt moves in a straight line, and has flanges 31 engaging indentations 14. In Figs. 21 and 22 the indentations are curved, and the bolt'is rotated. l

Indeiitations or ribs may also be provided on internal paits of the lock, for guiding or positioning the same. In Figs. 23 and 24 the bolt 13 engages channels or indentations 14 in the wall 1 of the case. The tumbler 15, which moves in a direction perpendicular to the bolt movement, has flanges 16 engaging channels 17 in the wall 2, and also has an indentation 18, forming aA boss which engages a channel 19 formed by an indentation in the bolt. For retracting the bolt the tumbler must first be lifted, to remove the boss 18 from one of the downward arms of the channel 19 to the horizontal part thereof. There may be a plurality of tumblers side by side, the horizontal part of the channel 19 being lengthened, and the tumbler nearest the bolt being cut away, to the left of the boss 18, for a longer boss 18 on the next tumbler to enter the central vertical ai'in of the channel, and so on.

By using `indentations as described, the weakeningof the parts 18 and 15 by cuttingv slot-s therein is avoided.

Figs. 25 and 26 show a lock with a ward plate having flanges 11 engaging indentations 14 in the wall 2 of the case.

The use of indentations in the manner indicated enables a lock which is very diliicult to tamper with to be made at low cost. The indentations may be made longer than required foi' working of the lock, and additional ones not required for the working may be provided, all arranged, if desired. to give an ornamental appearance, and serving to mislead unauthorized persons who may attempt to use false keys. In Figs. 27 and 28 there are indentations 21 forming wards for the key, and indentations 14 for the bolt, and also blind indentations 25 and 26 which have no such function. The indentations 14 are longer than required, and they may be crossed by other iiidentations, tending to conceal their purpose. These and many other devices may be used to prevent the eX-` ternal appearance of the indentations from forming any useful guide to the const-ruction of the internal mechanism.

There moving parts are in Contact with each other indentations may be used tol reduce the frictional surfaces.

I claim:

1. A lock comprising a case, a ward plate loosely inserted in said case and provided with lugs, bent only towards one wall of said case, a supplementary plate inserted between said case and said ward plate and piovided with lugs, bent only towards the opposite wall-of said case, and a spring-pressed bolt having lugs, bent to the same side of said bolt which is guided in said case by said ward plate and said supplementary plate.

a supplementary plate and a spring-pressed bolt, said ward plate supplementary plate and bolt having lugs, bent on each member to one side, said supplementary plate having a C-Shaped aperture, whereby a nose is formed, said ward plate having in its outer edge an incision corresponding in form to the lower part of said aperture and forming a nose in said ward plate, said bolt having in its inner edge an incision corresponding in form to the upper part of said aper- 2. A lock comprising a case, a ward plate,

, said nose of said ward plate and said tongue ot said bolt, the upper part ot' said aperture being narrower than said incision in said bolt.

3. A lock comprising a case, a ward plate and a spring-pressed bolt, said ward plate and said bolt having lugs, bent on each member to one side, said ward plate having a bend forming a shoulder for guiding saidy and said bolt having lugs, bent on each mem-L ber to one side, said ward plate having a bend forming a shoulder for guiding said bolt and a C-shaped aperture, whereby a nose is formed in said ward plate through which nose passes said steplike bend, said bolt having in its inner edge an incision corresponding in form to the upper part of said aperture and forming a tongue in said bolt which is covered by said nose, the upper part of said perforation being narrower than said incision.

5. A lock comprising a case, a ward plate and a spring-pressed bolt, said ward plate and said bolt having lugs, bent on each member to one side, said ward plate having a bend forming ashoulder for guiding said bolt and a C-shaped perforation forming a nose in said ward plate, said bolt having in its inner edge an incision corresponding in form to the upper part of said perforation and forming a tongue in said bolt, said steplike bend of said ward plate passing through said nose which covers said tongue, the key hole of said case being arranged out of line with said ward nose and said tongue.

6. A lock comprising a case, a ward plate and a spring-pressed bolt, said ward plate and said bolt having lugs, formed of a single bend on each member to one side only, the walls oi said case having indentations corresponding to said lugs for lirmly holding said ward plate and guiding said bolt in said case. n

7. A lock comprising a case, a bolt and a spring-pressed tumbler, said ease said bolt and said tumbler' being provided with indentations engaging one another for'guiding said bolt in said case and said tumbler on said bolt.

8. -A look comprising a oase a bolt and a plurality of spring-pressed tumblers, said case said bolt and said tumblers being provided f with indentations engaging one another or guiding said bolt in said case and said'tumblers on said bolt.

9. A lock comprising a spring-pressed bolt provided with lugs and a case provided with indentations corresponding to said lugs for guiding said bolt in said case.y

10. A lock case provided with indentations and a spring engaging said indentations.

11. Alock case provided with an indentation in its rear wall forming abearing for a corresponding projection of the key-bit and with a plurality of arcuate indentations in the same case-wall concentric to 4said bearing indentation, said indentations providing a plurality of guide ways engaging corresponding indentations in the edge of.

the key-bit.. A

l2. A lock with indentations in the lock case for bearing the key-bit, holding the spring and the immovable partsl and for guiding the movable parts of the lock-mechanism, the lock oase being provided with additional indentations which have no function in the working of the mechanism and in respect of the key-bit but veil the indentationsy necessary for the lock mechanism.

13. The combination rwith a lock comprissaid bolt, a C shaped perforation formingk a nose in `said ward plate, said bolt having in its inner end an incision corresponding in form to the 'upper part of said perforation and forming a ktongue onv said bolt, the bend of said ward plate passing through said nose and said case having a key hole arranged out of line ywith said nose and said tongue of a key having asic-kle shaped bit whereby it must be inserted into engagement with the said nose and tongue Vwith a circular motion, and the handle of Said key limiting the extent of insertion ot said key into said lock.

In testimony whereof I atlix my signature in presence of two witnesses.

FRIEDRICH-ILHELM Mill TS.

Images