US3561674A - Totalizer shifting mechanism - Google Patents

Totalizer shifting mechanism Download PDF

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Publication number
US3561674A
US3561674A US741751A US3561674DA US3561674A US 3561674 A US3561674 A US 3561674A US 741751 A US741751 A US 741751A US 3561674D A US3561674D A US 3561674DA US 3561674 A US3561674 A US 3561674A
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control
totalizer
stud
sensing
during
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US741751A
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English (en)
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George J Eberhardt
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NCR Voyix Corp
National Cash Register Co
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NCR Corp
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C15/00—Computing mechanisms; Actuating devices therefor
    • G06C15/04—Adding or subtracting devices

Definitions

  • Lavin ABSTRACT A totalizer shifting mechanism for transferring a total from one totalizer element to another totalizer element on the same totalizer line during the same machine cycle including a control member containing a plurality of predetermined positioned control elements mounted on the upper and lower surfaces of the control member, a mechanism for shifting the control member between two positions, and sensing means, controlling the positioning of the totalizer line, for sensing the control elements in both positions.
  • Another object of this invention is to provide a totalizerselecting mechanism whose operation can be modified by manually-operated control members located on the keyboard.
  • the present invention includes certain novel features of construction and combinations of parts, a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part of this'specification.
  • FIG. 1 is a schematic representation of the keyboard used in the present disclosure.
  • FIG. 2 is a detailed top view of a countershifting selecting plate showing the location of the control studs on the plate.
  • FIG. 3 is a detailed side view of the countershifting selecting plate, showing its control by a transaction key in the transaction bank.
  • FIG. 4 is a partial detailed exploded view of the countershifting mechanism, showing the actuating mechanism for the slide members.
  • FIG. 3 is a partial detail of an exploded view of the arrangement of the countershifting selecting plate n e nbers with the primary and auxiliary slide members.
  • FIG. 8 is a detailed side view of the counterselecting cam and the counterselccting cam arm, showing the connecting structure of the arm to the selecting plate.
  • FIG. 9 is a detailed side view of the mechanism operated by the unit lock lever for shifting the selecting plate.
  • FIG. 10 is a partial detailed side view of the unit lock lever and its operation of the transmission line.
  • the invention of the present disclosure is directed to a cash register or accounting machine of the type disclosed in US. Pat. application Ser. No. 618,598, filcd by Louis E. Zurbuchen and Freeland R. Goldammer on Feb. 27, I967, now U.S. Pat. No. 3,431,40l and in US. Pat No. 3,384.21 1, issucd May 2!, 1968, on the application of Dale L. Placke and Kenneth C. Flint.
  • the keyboard of the above-cited Zurbuchen et al. application is one in which the selection of totalizers, indicator mechanisms, and printer mechanisms is controlled by transaction keys mounted on the keyboard. Since the invention is limited to the selection and shifting of the totalizers, only those elements which are required for a full understand ing of the invention will be disclosed and described herein.
  • FIG. I there is shown a schematic representation of the keyboard of the cash register in which the present invention is utilized. Included in the keyboard are a bank of motorized transaction keys 20, five banks of amount keys 21 to 25 inclusive, a Unit Lock Lever 26 and a nonmotorized Taxable Item key 27, and a motorized combination Subtotal and item-entering key 28.
  • the keys in the transaction banks and the key 28 when depressed, control the operation of the machine, which results in the rotation of a main cam shaft.
  • amounts set up in the amount banks are transferred to the totalizers selected by the depressed transaction keys.
  • FIGS. 2, 3, and 4 there is shown the mechanism for selecting the totalizers to which amounts are to be added or from which amounts are to be removed.
  • a countershifting selecting plate 30 engaged and slidably held within a slot 31 located on two pairs of studs 32 mounted on an L-shaped flange portion 33 of a selecting plate bracket 34.
  • the bracket 34 has a pair of slots 35, within which are located studs 36 mounted on a side frame (not shown) of the machine.
  • the slots 35 allow the bracket 34 to be reciprocated on the studs 36 in a manner to be described more fully hereinafter.
  • the countershifting selecting plate 30 contains two sets of holes 37, 38, arranged in nine rows of five holes each. Each row represents a key position in the transaction bank, and each hole in each row represents the totalizer pinion on one of the totalizer lines. In the present embodiment, there are two lines of totalizer pinions, each having a maximum capacity of five totalizers.
  • the holes 37 in the countershifting selecting plate 30 represent any one of the five totalizer pinions on the first totalizer line while the holes 38 represent any one of the five totalizer pinions on the second totalizer line.
  • studs 40 Selectively positioned in some of the holes 37, 38 are studs 40. As shown by the dotted lines in FIG. 2 and in FIGS. 3, 7, 8, and 9, some of the studs may be mounted on the bottom of the slide only, while others may be mounted on the top only or on both sides located in the same position. As will be explained more fully hereinafter, the studs are programmed to be located on a selecting plate to allow any of the keys in the transaction row to select any of the totalizers on the first and second totalizer lines.
  • a coupling member 41 (FIG. 3) containing a slot 42.
  • a stud 43 mounted on one end of an idler arm 44.
  • the other end of the idler arm 44 contains a stud 45 mounted within a slot 46 located in a reducer arm detent 47 slidably mounted on a pair oi support members 48 for rectilinear movement.
  • the idler arm 44 is rotatably mounted on u stud 50 located in the machine framework.
  • the detent 57 is mounted adjacent to each of the stems 58 of the transaction keys in the transaction bank 20 (FIG. 1). Located in the detent 57 and adjacent to each of the key stems 58 are a slot 60 and two cam surfaces,'61, 62.
  • the key stem portion 58 constitutes a notched-out portion of the key, thereby providing a shoulder 63, which, when the key is depressed, engages either one of the cam surfaces 61, 62 or the slot 60.
  • the differential detent arm 53 is cammed in either direction or remains in the neutral rsition whenever a transaction key is depressed.
  • the cam surfaces 61, 62 areso oriented that each transaction key so programmed earns the detent arm 53 a predetermined distance. This movement is transmitted by the transaction detent arm 53 to the reducer arm detent 47, which in turn positions the selecting plate 30 through the action of the'idler arm 44. Thus the selecting plate 30 is positioned commensurate with the transaction key depressed. As will be described more fully hereinafter, this movement of the selecting plate locates one of the studs 40 in a position to be sensed by a totalizer shifting mechanism for positioning a totalizer for operation.
  • FIGS. 4 and 5 there is shown an exploded view of the totalizer shifting mechanism used in the present embodiment.
  • This shifting mechanism is similar in construction and operation to the structure disclosed in the previously- Zurbuchen et a].
  • a totalizer shaft 64 is mounted between a pair of support members 65, one of which is shown in the drawing. Rotatably mounted on the shaft 64 are the totalizer pinions 66.
  • the first totalizer line in the present embodiment there are a cross-footer or add-subtract totalizer, a group totalizer, and a selection itemizer for each amount bank in the machine.
  • the second totalizer line there are five itemizing totals for each amount bank in the machine. Included is a totalizer for each of the fCredit, Meat,"
  • this scissors mechanism includes an auxiliary slide member 71, a primary slide member 72, a primary slide arm 73, and a shifting plate 74.
  • the slide arm 73 has, mounted on its upper surface, a roller 75, which is positioned within a slot 76, located in the auxiliary slide 71, and a stud 77, positioned within a hole 78, located in the primary slide 72.
  • a roller 79 Mounted on the lower side of the slide arm 73 is a roller 79, positioned within a slot located in the shifting plate 74.
  • a second slot, 81 accommodates the stud of the slide arm for is shsmbs tsria fl yami 9..
  • the shifting plate 74 and the slides 71 and 72 are slidably mounted on a differential bracket member 82 (FIG. 4), which is mounted within the framework ofthe machine.
  • a differential bracket member 82 (FIG. 4), which is mounted within the framework ofthe machine.
  • Mounted on the bracket 82 is a stud 83, having a shoulder portion 84.
  • the stud 83 is positioned within the slot 85 (FIG. 5). located in the auxiliary slide 71, and a slot 86. located in the primary slide 72.
  • a second stud, 88 is positioned withina slot of the slide 71 and a slot 91 of the slide 72, both slides separated by a spacer 69 (FIG. 3) and resting on the shoulder 84 of the studs 83 and the shoulder 92 of the stud 88.
  • This arrangement A set of studs 93, mounted on the bracket 82 is positioned within a pair of slots 94, located in the shifting plate 74.
  • a shifting link 100 Rotatably mounted on a stud 98 (FIGS. 4-and 5), located at one end of the shifting plate 74, is a shifting link 100, the other end-of which is connected to a shifting arm 101, rotatably mounted on a shaft 102.
  • the arm 101 is secured to a second arm, 103-by means of a shaft and hub combination 104.
  • the second arm 103 in turn is connected to a cam follower arm 105, rotatably mounted one cam arm line 106.
  • a pairof gllers 107 mounted on the cam follower arm 105, engages a pair of cam plates 108 secured to a cam shaft 110.
  • the shifting link 100 Upon the clockwise rotation of thecam shaft 110, the shifting link 100, through the action of the shifting arms 101 and 103 and the cam follower arm 105, reciprocates the shifting plate 74 first to the left, as viewed in FIG. 4, and then to the right. As shown in FIG. 6, the cam plate 108 reciprocates the shifting plate 74 twice during each machine operation.
  • the shifting plate 74 moves to the left at 5 of revolution, completing its movement by 55 of revolution.
  • the'plate 74 begins to move to the right, towards its home position, completing this movement by of revolution.
  • the second movement begins at of revolution and is completed at 250 of revolution.
  • the leftward movement of the shifting plate 74 rotates the primary slide arm 73 clockwise. This movement of the arm 73 is transmitted by the roller 75 to the auxiliary slide 71 and by the stud 77 to the primary slide 72, resulting in movement of the slides 71 and 72 toward each other.
  • Mounted on each of the slides 71 and 72 is a sensing finger 111 and112 respectively. As shown in FIG. 4, both of the fingers are positioned ad,- jacent to the countershifting selecting plate 30. As each of the slides 71, 72 move toward each other, the sensing finger 112 on the slide 72 and the sensing finger 111 on the slide 71 begin to move toward each other.
  • one of the sensing fingers senses the stud, thereby stopping the movement of its cor responding slide.
  • the other slide continues its movement until its sensing finger senses the same stud as that sensed by the first sensing finger.
  • either the' notched portion 70 of the auxiliary slide 71 or the notched portion 169 of the primary slide72 engages the control arrri 68, thereby moving the totalizer support member 65 along a shaft 113 (FIG. 4) a distance commensurate with the position of the stud 40 on the plate 30.
  • the totalizers when the totalizers are selected'during the first reciprocal movement of the shifting plate 74, the selected totalizer is moved into engagement with the amount racks by a totalizer-engaging mechanism (not shown) prior to t he movement of the racks from their home positions.
  • the totalthe totalizer shifting mechanism for the second totalizer line. 75 izer-engaging mechanism is operated in reset or add timing to correspond to the timing of the operation of the totalizer.
  • the racks are moved under the control of the totalizers until a large tooth on the totalizer pinion engages a transfer mechanism, which thereby stops the movement of the amount racks.
  • the first selected totalizers are withdrawn from engagement with the adjusted amount racks and a second group of totalizers are brought into engagement with the racks
  • subsequent movement of the racks to their home positions adds the amount set up in the racks by the first selected totalizers to the second group of totalizers.
  • This action constitutes a transfer of amounts from the first set of totalizers to the second set of totalizers.
  • the engagement of the totalizers with the amount racks after the racks have been adjusted so as to contain an amount is characterized as an add operation.
  • the second movement of the shifting plate 74 (FIG. 6) is characterized as being operated in add timing. If an amount set up in the amount keys of the keyboard is to be added into a totalizer, the totalizer is also selected in add timing.
  • FIG. 8 there is shown a mechanism for shifting the selecting plate 30 (FIG. 2) in a vertical direction.
  • a cam shaft 114 Located adjacent the selecting plate 30 is a cam shaft 114, to which are secured double cam members 115, whose cam surfaces are engaged by a pair of rollers 116 rotatably mounted on a counterselecting cam arm 117.
  • the cam arm 117 is rotatably mounted on a stud 118, secured to the machine framework.
  • the other end of the cam arm 117 has mounted thereon a stud 120, which is positioned between a pair of scissors arms 121 and 122 (FIGS. 8 and 9), rotatably mounted on a stud 123, located within the machine framework.
  • FIG. 8 and 9 As shown more clearly in FIG.
  • a spring 124 is connected between the arms 121 and 122, urging the arms toward each other, thereby gripping the stud 120.
  • Thearm 121 has an upper scissors ex tension 125, which engages a stud 126, mounted on a control arm 127, which in turn is rotatably mounted on the stud 123.
  • the arm 122 also has an upper scissors portion 128, which engages the stud 126, the extensions 125 and 128 gripping the stud 126 under the action of the spring 124. It is obvious that any movement of the stud 12% is transferred to the arm 127 due to the scissors action of the arms 12], 122.
  • This movement is completed at 158 of revolution and positions the studs 40 on the upper side of the selecting plate 30 in a position to be sensed by the sensing fingers 111, 112 of the slides 71, 72 (FIGS. 4 and 5) in the manner described previously,
  • the sensing action of the fingers 111, 112 in add timing takes place between 155 and 250 (FIG. 6) of revolution of the machine.
  • a stud 132 is located on top of the plate and a stud 133 is located on the bottom of the plate.
  • the stud 133 is sensed, thereby selecting the totalizer for resetting to its zero position in the manner described above.
  • the slides 71, 72 are returned to their home positions by of revolution of the main cam shaft, at which time the selecting plate 30 is lowered by the action of the cam 115, as described above. This movement is completed by 158 of revolution.
  • the stud 132 is sensed by the sensing fingers, thereby positioning a selected totalizer for engagement with the amount racks, which at this time have been adjusted under the control of the totalizer selected by the stud 133.
  • the amount racks are then returned to their home position, thereby adding the amount set up in the racks by the first set of totalizers to the second selected totalizers.
  • a total amount is transferred between the totalizers located on the same totalizer line during the same machine operation.
  • the selecting plate 30 is programmed by the location of a stud 40 on the upper side of the plate, so that the programmed totalizer to which an amount is to be transferred, or into which an amount is to be entered, will be selected in add timing.
  • the stud 40 representing this totalizer must be sensed by the sensing mechanism of FIGS. 4 and 5 in reset timing. In order to provide this control,
  • FIGS. 9 and 10 the mechanism disclosed in FIGS. 9 and 10 is used.
  • the Lock Lever 26 When the Lock Lever 26 is moved to the Read Group" position, the amount in the group totalizer is removed from the totalizer and set up in the indicators and is printed.
  • the stud 40 for this group totalizer is located on the upper side of the selecting plate 30 to allow the stud to be sensed in add timing during the transfer operation, but, in the above-cited Read Group" operation, the stud must be sensed in reset timing. The following-disclosed mechanism allows this operation to occur.
  • the Unit Lock Lever 26 is slidably mounted on studs 134 and contains a number of gear teeth 135, which engage a gear segment 136 rotatably mounted on a stud 137.
  • the lower end of the segment 136 contains gear teeth 138, which engage a gear 140 secured to a transmission line 141.
  • mounted on the transmission line 141 is a cam 142, engaged by a sensing arm 143 rotatably mounted on a stud 144.
  • the other end of the sensing arm 143 is engaged by a link 145, which is connected to the control arm 127. It is seen from this construction that, whenever the Lock Lever 26 is moved to the left or right, as viewed in FIG.
  • the transmission line 141 is rotated by the action of the gear segment 136, which positions a high portion 146 of the cam 142 adjacent to the sensing arm 143, thereby rocking the sensing arm clockwise about the stud 144.
  • This movement of the arm 143 is transmitted to the link 145, which results in the rocking of the control arm 127 clockwise about the stud 123, which lowers the selecting plate 30 due to the engagement of the bracket 34 by the stud 130 mounted on the end of the control arm 127.
  • the Lock Lever 26 is moved to the Read'Group" position or to the Reset Credit” position (FIG. 1), the selecting plate 30 is moved downwardly, thus allowing the sensing fingers 111, 112 (FlGS.
  • the Taxable Item key is a modifying key andis used with the Meat key 147 (FIG. 1) and the Produce key 148. Normally, the operation of the Meat and Produce" keys would add amounts into their own totalizers and the plus side of the add-subtract totalizer. With the depression of the Taxable Item key, the amounts are entered into the selective itemizer totalizer and their own totalizers. Since the selecting plate 30 is positioned by the transaction keys 147, 148 in the transaction bank 20, the selection of either the selective itemizer totalizer or the plus side of the add-subtract totalizer must take place at one position of the selecting plate. This is accomplished in the following manner.
  • a stud 149 located on the top side of the selecting plate 30, is sensed in add timing to select the plus side of the add-subtract totalizer for engagement with the differential rack members of the amount banks in the manner described above.
  • a totalizer-engaging mechanism moves the selected totalizer into engagement with the differential rack members in either reset or add timing, the timing being controlled by the transaction key depressed, in the present example, the totalizer-engaging mechanism is operated in add timing, since the amounts set up in into the selected totalizer.
  • the only totalizer that will be selected will be that totalizer which is selected by the sensing fingers 111, 112 during this operation in add timing, as
  • a stud 163 (FIG. 2), mounted on the bottom of the selecting plate 30 but in the same row as the stud 149, is also sensed in add timing in the following manner. Since a different totalizer is now being selected, the stud 163 is located in a position different from that of the stud 149, as shown in HO. 2. As shown in FlG. 7, depression of the Taxable item key 27 allows a shoulder 150 on the key stem to cam a detent 151 to the left, as viewed in H6. 7. This movement rocks an arm 152, rotatably mounted on a shaft 153, clockwise due to the yoking of a stud mounted on the arm by the detent 151.
  • a second stud, 155, mounted on the arm 152 engages a hook portion 156 of a slide arm 157 slidably mounted on a pair of studs 158.
  • a stud 160, mounted on the slide arm 157 is positioned adjacent a cutout portion 161 of the selecting plate bracket 34. It is seen that the clockwise rotation of the arm 152 moves the slide arm 157 against the action of a spring 162 to position the stud 160 within the cutout portion 161, thus blocking any downward movement of the bracket 34.
  • the selective itemizer totalizer represented by the stud 163, is selected, but, since the totalizers engaging mechanism is now being operated in add timing, the selected totalizers remain disengaged from the differential rack members of the amount bank.
  • the same lower stud 163 of the selecting plate 30 that was sensed in reset timing is now sensed by the sensing fingers to position the selective itemizer totalizcrs for engagement again with the differential racks.
  • the totalizer-engaging mechanism operates to engage the selected totalizer with the rack members of the amount bank.
  • the amounts that would previously have been entered into the. plus side of the add-subtract totalizer are now entered into the selective itemizer totalizer.
  • a similar operation occurs with the use of the Produce" key 148.
  • a business machine apparatus constructed and arranged to perform a machine operation, and including a plurality of selectively depressible control keys, the combination including:
  • b a plurality of totalizer elements each adapted when selected, to transfer information to the business machine apparatus during the first portion of said machine operation, and to receive information, inserted into the business machine, during the second portion of the machine operation;
  • programming means for allowing any of said control keys to select any of said totalizer elements including a differentially settablc coded member settable to a position commensurate with the adjusted position of said scttable member, saidv coded member mounted for transverse movement between a first and second position and having a plurality of first and second control elements in predetermined selected positions thereon;
  • sensing means when operated, for sensing a first control element when said coded member is in said first position and sensing a second control element when said coded member is in said second position, said sensing means establishing a control position upon sensing a control element;
  • said coded member comprises a slidably supported plate member containing a plurality of apertures
  • said first and second control elements comprise stud members selectively mounted in said apertures, said first stud members being mounted in a first control area of said plate member and the second stud members being mounted in a second control area of said plate member whereby, upon operation of said sensing means, information set up in a totalizer element selected by said sensing means upon sensing one of said first stud members is transferred to a totalizer element selected by said sensing means upon sensing one of said second stud members.
  • said shifting means includes a support member slidably supporting said plate member, said support member being mounted for movement transverse to the movement of said plate member;
  • cam-actuated means engaging said support member for moving said support member to said first position during the first portion of said machine operation and to said second position during the second portion of said machine operation.
  • the business machine apparatus of claim 4 which includes:
  • means for operating said actuating member including a manually operated control member mounted on the keyboard of the business machine apparatus and adapted for movement to a first position;
  • a rotatably supported cam member having highand low control surfaces; saidcam member being rotated commensurate with the movement of said manually operated control member;
  • sensing means connected to said actuating means and engaging said control surfaces whereby, upon' movement of said control member to said first position, said sensing means will sense a high control surface on said cam member, thereby operating said actuating means.
  • said sensing means includes a pair of feeler members each slidably mounted adjacent an opposite side of said plate member; and 7 said sensing operating means includes a cam member for moving said feeler members toward each other during the first and second portions of said machine operation; 'whereby said feelcr members will sense a stud member on the lower side of said plate member during the first portion of said machine operation when said plate member is in said first position and a stud member on the upper side of said plate member during the second portion of said machine operation when said plate member is in said second position.
  • said support member contains a slot portion
  • said disabling means includes a detent member having a stud mounted thereon, said detent member being slidably mounted adjacent said support member with the stud being positioned adjacent the slot portion of the support member;
  • said manually operated means includes a control key mounted on the keyboard of the machine apparatus;
  • a business machine apparatus constructed and arranged to perform a machine operation and including a plurality of selectively depressible control keys, the combination including:
  • c. means for supporting said line of totalizer elements and adapted, when operated, to move said totalizer line to a predetermined position to select a totalizer element for transferring information to the business machine apparatus during the first portion of the machine operation, and to receive information, inserted into the machine upparatus, during the second portion of the machine operation;
  • a coded plate member containing a predetermined number of holes extending therethrough in selected positions thereon, said plate member being operated by said differentially settable member to be moved to a position commensurate with the adjusted position of said settable member;
  • a support member slidably supporting said plate member, said support member mounted for movement between a first and second position in a direction transverse to the movement of said plate member;
  • a first set of stud members selectively mounted in some of said holes, said stud members extending from the lower surface of said plate member;
  • a second set of stud members selectively mounted in some of said holes, said second set of stud members extending from the upper surface of said plate member;
  • a first and a second feeler member slidably mounted adjacent said plate member, said feelcr members adapted for movement toward each other;
  • actuating means engaging said first and second feelcr members to move said feeler members toward each other during the first and second portions of said machine cycle, the feelcr member sensing one of said first set of stud members when the support member is in the first position and one of said second set of stud members when the support member is in the second position, one of said feeler members being moved to a control position upon sensing of a stud member;
  • k. means connected to said supporting means and actuated by the feeler member in the control position to position the line gf totaiize elements acco rding to the stud member sensed by said feelcr members whereby information set up in the totalizer element selected by said feeler members during the first portion of the machine operation is transferred to a totalizer element selected by the feelcr members during the second portion of the machine operation.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Cash Registers Or Receiving Machines (AREA)
US741751A 1968-07-01 1968-07-01 Totalizer shifting mechanism Expired - Lifetime US3561674A (en)

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US74175168A 1968-07-01 1968-07-01

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US3561674A true US3561674A (en) 1971-02-09

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US (1) US3561674A (xx)
JP (1) JPS507960B1 (xx)
BE (1) BE735094A (xx)
CH (1) CH491439A (xx)
DE (1) DE1932960C3 (xx)
FR (1) FR2012044A1 (xx)
GB (1) GB1213076A (xx)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616623A (en) * 1952-11-04 Accounting machine
US2911141A (en) * 1959-11-03 Totalizer selecting and control mechanism
US3092313A (en) * 1963-06-04 Register

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616623A (en) * 1952-11-04 Accounting machine
US2911141A (en) * 1959-11-03 Totalizer selecting and control mechanism
US3092313A (en) * 1963-06-04 Register

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DE1932960B2 (de) 1973-11-22
CH491439A (fr) 1970-05-31
DE1932960C3 (de) 1974-06-20
BE735094A (xx) 1969-12-01
GB1213076A (en) 1970-11-18
DE1932960A1 (de) 1970-01-15
FR2012044A1 (xx) 1970-03-13
JPS507960B1 (xx) 1975-03-31

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